# 萩原 朋道

Last Update: 2021/06/02 13:01:56

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Faculty
Org1 Job title

Concurrent Affiliation
Org1 Job title
Institute for Liberal Arts and Sciences (ILAS) Professor
Office 〒615-8510 京都市西京区京都大学桂 Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
Academic Organizations You are Affiliated to in Japan
Organization name(Japanese) Organization name(English)

システム制御情報学会 The Institute of Systems, Control and Information Engineers

Academic Organizations Overaseas You are Affiliated to
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The Institute of Electrical and Electronic Engineers USA
Field(Japanese) Field(English) University(Japanese) University(English) Method

University(Japanese) University(English) Faculty(Japanese) Faculty(English) Major(Japanese) Major(English) Completion Status

University(Japanese) University(English) Faculty(Japanese) Faculty(English) Major(s)(Japanese) Major(s)(English) Completion Status

Work Experience
Period Organization(Japanese) Organization(English) Job title(Japanese) Job title(English)
1986/07/16-1991/03/31 京都大学 Kyoto University 助手 Instructor (Research Associate)
1991/04/01-2001/03/31 京都大学 Kyoto University 助教授 Associate Professor
2001/04/01-____/__/__ 京都大学 Kyoto University 教授 Professor
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Research Topics
(Japanese)

(English)
Control Theory and Its Applications
Overview of the research
(Japanese)
フィードバック制御系の設計・解析のための理論と実システムへの応用
(English)
Theory of Design and Analysis of Feedback Control Systems and Its Applications to Real Systems
Fields of research (key words)
Key words(Japanese) Key words(English)

Published Papers
Author Author(Japanese) Author(English) Title Title(Japanese) Title(English) Bibliography Bibliography(Japanese) Bibliography(English) Publication date Refereed paper Language Publishing type
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems With Stochastic Dynamics Determined by an i.i.d.Process Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems With Stochastic Dynamics Determined by an i.i.d.Process Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems With Stochastic Dynamics Determined by an i.i.d.Process IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 64, 11, 4764-4771 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 64, 11, 4764-4771 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 64, 11, 4764-4771 2019/11 Refereed English Research paper(scientific journal)

Yohei Hosoe, Tomomichi Hagiwara, DImitri Peaucelle Yohei Hosoe, Tomomichi Hagiwara, DImitri Peaucelle Yohei Hosoe, Tomomichi Hagiwara, DImitri Peaucelle Robust Stability Analysis and State Feedback Synthesis for Discrete-Time Systems Characterized by Random Polytopes Robust Stability Analysis and State Feedback Synthesis for Discrete-Time Systems Characterized by Random Polytopes Robust Stability Analysis and State Feedback Synthesis for Discrete-Time Systems Characterized by Random Polytopes IEEE Transactions on Automatic Control, 63, 2, 556-562 IEEE Transactions on Automatic Control, 63, 2, 556-562 IEEE Transactions on Automatic Control, 63, 2, 556-562 2018/02/01 Refereed English Research paper(scientific journal)

Tomomichi Hagiwara, Akira Inai, Jung Hoon Kim Tomomichi Hagiwara, Akira Inai, Jung Hoon Kim Tomomichi Hagiwara, Akira Inai, Jung Hoon Kim THE L-infinity/L-2 HANKEL OPERATOR/NORM OF SAMPLED-DATA SYSTEMS THE L-infinity/L-2 HANKEL OPERATOR/NORM OF SAMPLED-DATA SYSTEMS THE L-infinity/L-2 HANKEL OPERATOR/NORM OF SAMPLED-DATA SYSTEMS SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 56, 5, 3685-3707 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 56, 5, 3685-3707 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 56, 5, 3685-3707 2018/01 Refereed English Research paper(scientific journal)
Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Upper/lower bounds of generalized H-2 norms in sampled-data systems with convergence rate analysis and discretization viewpoint Upper/lower bounds of generalized H-2 norms in sampled-data systems with convergence rate analysis and discretization viewpoint Upper/lower bounds of generalized H-2 norms in sampled-data systems with convergence rate analysis and discretization viewpoint SYSTEMS & CONTROL LETTERS, 107, 28-35 SYSTEMS & CONTROL LETTERS, 107, 28-35 SYSTEMS & CONTROL LETTERS, 107, 28-35 2017/09 Refereed English Research paper(scientific journal)
Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara Robust stability analysis with cycling-based LPTV scaling: part I. Fundamental results on its relationship with lifting-based LPTV scaling Robust stability analysis with cycling-based LPTV scaling: part I. Fundamental results on its relationship with lifting-based LPTV scaling Robust stability analysis with cycling-based LPTV scaling: part I. Fundamental results on its relationship with lifting-based LPTV scaling INTERNATIONAL JOURNAL OF CONTROL, 90, 7, 1345-1357 INTERNATIONAL JOURNAL OF CONTROL, 90, 7, 1345-1357 INTERNATIONAL JOURNAL OF CONTROL, 90, 7, 1345-1357 2017 Refereed English Research paper(scientific journal)
Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara Mitsuaki Miyamoto, Yohei Hosoe, Tomomichi Hagiwara Robust stability analysis with cycling-based LPTV scaling. Part II: its properties under the use of FIR separators Robust stability analysis with cycling-based LPTV scaling. Part II: its properties under the use of FIR separators Robust stability analysis with cycling-based LPTV scaling. Part II: its properties under the use of FIR separators INTERNATIONAL JOURNAL OF CONTROL, 90, 7, 1358-1370 INTERNATIONAL JOURNAL OF CONTROL, 90, 7, 1358-1370 INTERNATIONAL JOURNAL OF CONTROL, 90, 7, 1358-1370 2017 Refereed English Research paper(scientific journal)
Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara Modified State Predictive Control of Continuous-Time Systems with Input Delay Modified State Predictive Control of Continuous-Time Systems with Input Delay Modified State Predictive Control of Continuous-Time Systems with Input Delay 2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT), 843-847 2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT), 843-847 2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT), 843-847 2017 Refereed English Research paper(international conference proceedings)
Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Extensive theoretical/numerical comparative studies on H-2 and generalised H-2 norms in sampled-data systems Extensive theoretical/numerical comparative studies on H-2 and generalised H-2 norms in sampled-data systems Extensive theoretical/numerical comparative studies on H-2 and generalised H-2 norms in sampled-data systems INTERNATIONAL JOURNAL OF CONTROL, 90, 11, 2538-2553 INTERNATIONAL JOURNAL OF CONTROL, 90, 11, 2538-2553 INTERNATIONAL JOURNAL OF CONTROL, 90, 11, 2538-2553 2017 Refereed English Research paper(scientific journal)
Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara Yoichiro Masui, Kentaro Hirata, Tomomichi Hagiwara Modified State Predictive Control of Continuous-Time Systems with Input Delay Modified State Predictive Control of Continuous-Time Systems with Input Delay Modified State Predictive Control of Continuous-Time Systems with Input Delay 2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2017 Refereed English
Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara L-1 Discretization for Sampled-Data Controller Synthesis via Piecewise Linear Approximation L-1 Discretization for Sampled-Data Controller Synthesis via Piecewise Linear Approximation L-1 Discretization for Sampled-Data Controller Synthesis via Piecewise Linear Approximation IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 61, 5, 1143-1157 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 61, 5, 1143-1157 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 61, 5, 1143-1157 2016/05 Refereed English Research paper(scientific journal)

Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Further results on the L-1 analysis of sampled-data systems via kernel approximation approach Further results on the L-1 analysis of sampled-data systems via kernel approximation approach Further results on the L-1 analysis of sampled-data systems via kernel approximation approach INTERNATIONAL JOURNAL OF CONTROL, 89, 8, 1684-1697 INTERNATIONAL JOURNAL OF CONTROL, 89, 8, 1684-1697 INTERNATIONAL JOURNAL OF CONTROL, 89, 8, 1684-1697 2016 Refereed English Research paper(scientific journal)
Jung Hoon Kim, Tomomichi Hagiwara, Kentaro Hirata Jung Hoon Kim, Tomomichi Hagiwara, Kentaro Hirata Jung Hoon Kim, Tomomichi Hagiwara, Kentaro Hirata Spectrum of Monodromy Operator for a Time-Delay System With Application to Stability Analysis Spectrum of Monodromy Operator for a Time-Delay System With Application to Stability Analysis Spectrum of Monodromy Operator for a Time-Delay System With Application to Stability Analysis IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 60, 12, 3385-3390 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 60, 12, 3385-3390 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 60, 12, 3385-3390 2015/12 Refereed English Research paper(scientific journal)

Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Computing the L-infinity-induced norm of linear time-invariant systems via Kernel approximation and its comparison with input approximation Computing the L-infinity-induced norm of linear time-invariant systems via Kernel approximation and its comparison with input approximation Computing the L-infinity-induced norm of linear time-invariant systems via Kernel approximation and its comparison with input approximation IET CONTROL THEORY AND APPLICATIONS, 9, 5, 700-709 IET CONTROL THEORY AND APPLICATIONS, 9, 5, 700-709 IET CONTROL THEORY AND APPLICATIONS, 9, 5, 700-709 2015/03 Refereed English Research paper(scientific journal)
Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara L-infinity-induced norm analysis of sampled-data systems via piecewise constant and linear approximations L-infinity-induced norm analysis of sampled-data systems via piecewise constant and linear approximations L-infinity-induced norm analysis of sampled-data systems via piecewise constant and linear approximations AUTOMATICA, 51, 223-232 AUTOMATICA, 51, 223-232 AUTOMATICA, 51, 223-232 2015/01 Refereed English Research paper(scientific journal)

Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Computing the L-infinity[0, h)-induced norm of a compression operator via fast-lifting Computing the L-infinity[0, h)-induced norm of a compression operator via fast-lifting Computing the L-infinity[0, h)-induced norm of a compression operator via fast-lifting SYSTEMS & CONTROL LETTERS, 67, 1-8 SYSTEMS & CONTROL LETTERS, 67, 1-8 SYSTEMS & CONTROL LETTERS, 67, 1-8 2014/05 Refereed English Research paper(scientific journal)
Tatsuya Yamazaki, Tomomichi Hagiwara Tatsuya Yamazaki, Tomomichi Hagiwara Tatsuya Yamazaki, Tomomichi Hagiwara Conversion of linear time-invariant time-delay feedback systems into delay-differential equations with commensurate delays Conversion of linear time-invariant time-delay feedback systems into delay-differential equations with commensurate delays Conversion of linear time-invariant time-delay feedback systems into delay-differential equations with commensurate delays INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 45, 8, 1643-1656 INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 45, 8, 1643-1656 INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 45, 8, 1643-1656 2014 Refereed English Research paper(scientific journal)

Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Quasi-finite-rank approximation of compression operators on L-infinity[0, h) with application to stability analysis of time-delay systems Quasi-finite-rank approximation of compression operators on L-infinity[0, h) with application to stability analysis of time-delay systems Quasi-finite-rank approximation of compression operators on L-infinity[0, h) with application to stability analysis of time-delay systems IET CONTROL THEORY AND APPLICATIONS, 8, 2, 77-85 IET CONTROL THEORY AND APPLICATIONS, 8, 2, 77-85 IET CONTROL THEORY AND APPLICATIONS, 8, 2, 77-85 2014/01 Refereed English Research paper(scientific journal)
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Robust stability analysis based on finite impulse response scaling for discrete-time linear time-invariant systems Robust stability analysis based on finite impulse response scaling for discrete-time linear time-invariant systems Robust stability analysis based on finite impulse response scaling for discrete-time linear time-invariant systems IET CONTROL THEORY AND APPLICATIONS, 7, 11, 1463-1471 IET CONTROL THEORY AND APPLICATIONS, 7, 11, 1463-1471 IET CONTROL THEORY AND APPLICATIONS, 7, 11, 1463-1471 2013/07 Refereed English Research paper(scientific journal)
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Unified treatment of robust stability conditions for discrete-time systems through an infinite matrix framework Unified treatment of robust stability conditions for discrete-time systems through an infinite matrix framework Unified treatment of robust stability conditions for discrete-time systems through an infinite matrix framework AUTOMATICA, 49, 5, 1488-1493 AUTOMATICA, 49, 5, 1488-1493 AUTOMATICA, 49, 5, 1488-1493 2013/05 Refereed English Research paper(scientific journal)

Kentaro Hirata, Tomomichi Hagiwara, Itokazu Atsushi Kentaro Hirata, Tomomichi Hagiwara, Itokazu Atsushi Kentaro Hirata, Tomomichi Hagiwara, Itokazu Atsushi Numerical Methods for Spectrum Computation of Monodromy Operators via Non-Causal Hold Discretization Numerical Methods for Spectrum Computation of Monodromy Operators via Non-Causal Hold Discretization Numerical Methods for Spectrum Computation of Monodromy Operators via Non-Causal Hold Discretization SICE Journal of Control, Measurement, and System Integration, 6, 1, 45-53 SICE Journal of Control, Measurement, and System Integration, 6, 1, 45-53 SICE Journal of Control, Measurement, and System Integration, 6, 1, 45-53 2013 Refereed English Research paper(scientific journal)
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Robust Performance Controller Synthesis Based on Discrete-Time Noncausal Linear Periodically Time-Varying Scaling Robust Performance Controller Synthesis Based on Discrete-Time Noncausal Linear Periodically Time-Varying Scaling Robust Performance Controller Synthesis Based on Discrete-Time Noncausal Linear Periodically Time-Varying Scaling ASIAN JOURNAL OF CONTROL, 14, 5, 1194-1204 ASIAN JOURNAL OF CONTROL, 14, 5, 1194-1204 ASIAN JOURNAL OF CONTROL, 14, 5, 1194-1204 2012/09 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara Tomomichi Hagiwara Tomomichi Hagiwara Note on Well-Posedness and Separator-Type Robust Stability Theorem of LTI Systems Note on Well-Posedness and Separator-Type Robust Stability Theorem of LTI Systems Note on Well-Posedness and Separator-Type Robust Stability Theorem of LTI Systems SICE Journal on Control, Measurement, and System Integration, 5, 3, 169-174 SICE Journal on Control, Measurement, and System Integration, 5, 3, 169-174 SICE Journal on Control, Measurement, and System Integration, 5, 3, 169-174 2012 Refereed English Research paper(scientific journal)
Yamazaki Tatsuya, Tomomichi Hagiwara Yamazaki Tatsuya, Tomomichi Hagiwara Yamazaki Tatsuya, Tomomichi Hagiwara Conversion of Linear Time-Invariant Delay-Differential Equations with External Input and Output into Representation as Time-Delay Feedback Systems Conversion of Linear Time-Invariant Delay-Differential Equations with External Input and Output into Representation as Time-Delay Feedback Systems Conversion of Linear Time-Invariant Delay-Differential Equations with External Input and Output into Representation as Time-Delay Feedback Systems SICE Journal on Control, Measurement, and System Integration, 5, 4, 200-209 SICE Journal on Control, Measurement, and System Integration, 5, 4, 200-209 SICE Journal on Control, Measurement, and System Integration, 5, 4, 200-209 2012 Refereed English Research paper(scientific journal)
Yoshio Ebihara, Jun Yamaguchi, Tomomichi Hagiwara Yoshio Ebihara, Jun Yamaguchi, Tomomichi Hagiwara Yoshio Ebihara, Jun Yamaguchi, Tomomichi Hagiwara Periodically time-varying controller synthesis for multiobjective H-2/H-infinity control of discrete-time systems and analysis of achievable performance Periodically time-varying controller synthesis for multiobjective H-2/H-infinity control of discrete-time systems and analysis of achievable performance Periodically time-varying controller synthesis for multiobjective H-2/H-infinity control of discrete-time systems and analysis of achievable performance SYSTEMS & CONTROL LETTERS, 60, 9, 709-717 SYSTEMS & CONTROL LETTERS, 60, 9, 709-717 SYSTEMS & CONTROL LETTERS, 60, 9, 709-717 2011/09 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara, Kentaro Hirata Tomomichi Hagiwara, Kentaro Hirata Tomomichi Hagiwara, Kentaro Hirata Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems EUROPEAN JOURNAL OF CONTROL, 17, 2, 162-171 EUROPEAN JOURNAL OF CONTROL, 17, 2, 162-171 EUROPEAN JOURNAL OF CONTROL, 17, 2, 162-171 2011/03 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara, Masahiro Kobayashi Tomomichi Hagiwara, Masahiro Kobayashi Tomomichi Hagiwara, Masahiro Kobayashi Concatenated solutions of delay-differential equations and their representation with time-delay feedback systems Concatenated solutions of delay-differential equations and their representation with time-delay feedback systems Concatenated solutions of delay-differential equations and their representation with time-delay feedback systems INTERNATIONAL JOURNAL OF CONTROL, 84, 6, 1126-1139 INTERNATIONAL JOURNAL OF CONTROL, 84, 6, 1126-1139 INTERNATIONAL JOURNAL OF CONTROL, 84, 6, 1126-1139 2011 Refereed English Research paper(scientific journal)
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Properties of discrete-time noncausal linear periodically time-varying scaling and their relationship with shift-invariance in lifting-timing Properties of discrete-time noncausal linear periodically time-varying scaling and their relationship with shift-invariance in lifting-timing Properties of discrete-time noncausal linear periodically time-varying scaling and their relationship with shift-invariance in lifting-timing INTERNATIONAL JOURNAL OF CONTROL, 84, 6, 1067-1079 INTERNATIONAL JOURNAL OF CONTROL, 84, 6, 1067-1079 INTERNATIONAL JOURNAL OF CONTROL, 84, 6, 1067-1079 2011 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara Tomomichi Hagiwara Tomomichi Hagiwara Block checker/diagonal transformation matrices, their properties, and the interplay with fast-lifting Block checker/diagonal transformation matrices, their properties, and the interplay with fast-lifting Block checker/diagonal transformation matrices, their properties, and the interplay with fast-lifting INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 42, 8, 1293-1303 INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 42, 8, 1293-1303 INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 42, 8, 1293-1303 2011 Refereed English Research paper(scientific journal)
Yoshimichi Ito, Hiroshi Shirahama, Tomomichi Hagiwara Yoshimichi Ito, Hiroshi Shirahama, Tomomichi Hagiwara Yoshimichi Ito, Hiroshi Shirahama, Tomomichi Hagiwara On Sensitivity Reduction Problems of Sampled-Data Systems---Relationships to the Problems of Discrete-Time Systems--- On Sensitivity Reduction Problems of Sampled-Data Systems---Relationships to the Problems of Discrete-Time Systems--- On Sensitivity Reduction Problems of Sampled-Data Systems---Relationships to the Problems of Discrete-Time Systems--- SICE Journal on Control, Measurement, and System Integration, 3, 6, 456-465 SICE Journal on Control, Measurement, and System Integration, 3, 6, 456-465 SICE Journal on Control, Measurement, and System Integration, 3, 6, 456-465 2010/06 Refereed English Research paper(scientific journal)
Kenichi Morioka, Tomomichi Hagiwara Kenichi Morioka, Tomomichi Hagiwara Kenichi Morioka, Tomomichi Hagiwara Stability Analysis of Sampled-Data Systems with Static Sector Nonlinearities via Causal Linear Periodically Time-Varying Scaling Stability Analysis of Sampled-Data Systems with Static Sector Nonlinearities via Causal Linear Periodically Time-Varying Scaling Stability Analysis of Sampled-Data Systems with Static Sector Nonlinearities via Causal Linear Periodically Time-Varying Scaling SICE Journal on Control, Measurement, and System Integration, 3, 4, 260-265 SICE Journal on Control, Measurement, and System Integration, 3, 4, 260-265 SICE Journal on Control, Measurement, and System Integration, 3, 4, 260-265 2010/04 Refereed English Research paper(scientific journal)

Takayuki Inui, Tomomichi Hagiwara Takayuki Inui, Tomomichi Hagiwara Takayuki Inui, Tomomichi Hagiwara A Study on Stability of Optimal Regulators under Online Gain Adjustment A Study on Stability of Optimal Regulators under Online Gain Adjustment A Study on Stability of Optimal Regulators under Online Gain Adjustment SICE Journal of Control, Measurement, and System Integration, 3, 2, 111-120 SICE Journal of Control, Measurement, and System Integration, 3, 2, 111-120 SICE Journal of Control, Measurement, and System Integration, 3, 2, 111-120 2010/02 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara, Yasuhiro Ohara Tomomichi Hagiwara, Yasuhiro Ohara Tomomichi Hagiwara, Yasuhiro Ohara Noncausal linear periodically time-varying scaling for robust stability analysis of discrete-time systems: Frequency-dependent scaling induced by static separators Noncausal linear periodically time-varying scaling for robust stability analysis of discrete-time systems: Frequency-dependent scaling induced by static separators Noncausal linear periodically time-varying scaling for robust stability analysis of discrete-time systems: Frequency-dependent scaling induced by static separators AUTOMATICA, 46, 1, 167-173 AUTOMATICA, 46, 1, 167-173 AUTOMATICA, 46, 1, 167-173 2010/01 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara, Kenichi Morioka, Koichiro Okada Tomomichi Hagiwara, Kenichi Morioka, Koichiro Okada Tomomichi Hagiwara, Kenichi Morioka, Koichiro Okada Quasi-finite-rank approximation of compression operators in sampled-data systems and time-delay systems Quasi-finite-rank approximation of compression operators in sampled-data systems and time-delay systems Quasi-finite-rank approximation of compression operators in sampled-data systems and time-delay systems INTERNATIONAL JOURNAL OF CONTROL, 83, 11, 2385-2394 INTERNATIONAL JOURNAL OF CONTROL, 83, 11, 2385-2394 INTERNATIONAL JOURNAL OF CONTROL, 83, 11, 2385-2394 2010 Refereed English Research paper(scientific journal)

Tomomichi Hagiwara Tomomichi Hagiwara Tomomichi Hagiwara Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling AUTOMATICA, 45, 8, 1868-1872 AUTOMATICA, 45, 8, 1868-1872 AUTOMATICA, 45, 8, 1868-1872 2009/08 Refereed English Research paper(scientific journal)
Yoshio Ebihara, Yusuke Onishi, Tomomichi Hagiwara Yoshio Ebihara, Yusuke Onishi, Tomomichi Hagiwara Yoshio Ebihara, Yusuke Onishi, Tomomichi Hagiwara Robust Performance Analysis of Uncertain LTI Systems: Dual LMI Approach and Verifications for Exactness Robust Performance Analysis of Uncertain LTI Systems: Dual LMI Approach and Verifications for Exactness Robust Performance Analysis of Uncertain LTI Systems: Dual LMI Approach and Verifications for Exactness IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 54, 5, 938-951 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 54, 5, 938-951 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 54, 5, 938-951 2009/05 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara, Koichiro Okada Tomomichi Hagiwara, Koichiro Okada Tomomichi Hagiwara, Koichiro Okada Modified fast-sample/fast-hold approximation and -independent H-discretisation for general sampled-data systems by fast-lifting Modified fast-sample/fast-hold approximation and γ-independent H-discretisation for general sampled-data systems by fast-lifting Modified fast-sample/fast-hold approximation and -independent H-discretisation for general sampled-data systems by fast-lifting INTERNATIONAL JOURNAL OF CONTROL, 82, 9, 1762-1771 INTERNATIONAL JOURNAL OF CONTROL, 82, 9, 1762-1771 INTERNATIONAL JOURNAL OF CONTROL, 82, 9, 1762-1771 2009 Refereed English Research paper(scientific journal)

Tomomichi Hagiwara, Ryouta Mori Tomomichi Hagiwara, Ryouta Mori Tomomichi Hagiwara, Ryouta Mori Linear periodically time-varying scaling and its properties Linear periodically time-varying scaling and its properties Linear periodically time-varying scaling and its properties SYSTEMS & CONTROL LETTERS, 57, 10, 816-821 SYSTEMS & CONTROL LETTERS, 57, 10, 816-821 SYSTEMS & CONTROL LETTERS, 57, 10, 816-821 2008/10 Refereed English Research paper(scientific journal)
Tomomichi Hagiwara, Hiroaki Umeda Tomomichi Hagiwara, Hiroaki Umeda Tomomichi Hagiwara, Hiroaki Umeda Modified Fast-sample/Fast-hold Approximation for Sampled-data System Analysis Modified Fast-sample/Fast-hold Approximation for Sampled-data System Analysis Modified Fast-sample/Fast-hold Approximation for Sampled-data System Analysis EUROPEAN JOURNAL OF CONTROL, 14, 4, 286-296 EUROPEAN JOURNAL OF CONTROL, 14, 4, 286-296 EUROPEAN JOURNAL OF CONTROL, 14, 4, 286-296 2008/07 Refereed English Research paper(scientific journal)
Yoshio Ebihara, Yoshito Hirai, Tomomichi Hagiwara Yoshio Ebihara, Yoshito Hirai, Tomomichi Hagiwara Yoshio Ebihara, Yoshito Hirai, Tomomichi Hagiwara On H infinity model reduction for discrete-time linear time-invariant systems using linear matrix inequalities On H infinity model reduction for discrete-time linear time-invariant systems using linear matrix inequalities On H infinity model reduction for discrete-time linear time-invariant systems using linear matrix inequalities ASIAN JOURNAL OF CONTROL, 10, 3, 291-300 ASIAN JOURNAL OF CONTROL, 10, 3, 291-300 ASIAN JOURNAL OF CONTROL, 10, 3, 291-300 2008/05 Refereed English Research paper(scientific journal)
Yoshio Ebihara, Katsutoshi Maeda, Tomomichi Hagiwara Yoshio Ebihara, Katsutoshi Maeda, Tomomichi Hagiwara Yoshio Ebihara, Katsutoshi Maeda, Tomomichi Hagiwara Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 47, 3, 1547-1555 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 47, 3, 1547-1555 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 47, 3, 1547-1555 2008 Refereed English Research paper(scientific journal)
T. Hagiwara, K. Horiguchi T. Hagiwara, K. Horiguchi T. Hagiwara, K. Horiguchi An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties INTERNATIONAL JOURNAL OF CONTROL, 80, 9, 1471-1480 INTERNATIONAL JOURNAL OF CONTROL, 80, 9, 1471-1480 INTERNATIONAL JOURNAL OF CONTROL, 80, 9, 1471-1480 2007 English Research paper(scientific journal)
Tomomichi Hagiwara, Kazuhiro Horiguchi Tomomichi Hagiwara, Kazuhiro Horiguchi Tomomichi Hagiwara, Kazuhiro Horiguchi An Iterative Method with Guaranteed Convergence for Robust Performance Analysis of Sampled-Data Systems against Parameter Uncertainties An Iterative Method with Guaranteed Convergence for Robust Performance Analysis of Sampled-Data Systems against Parameter Uncertainties An Iterative Method with Guaranteed Convergence for Robust Performance Analysis of Sampled-Data Systems against Parameter Uncertainties International Journal of Control, 80, 9, 1417-1480 International Journal of Control, 80, 9, 1417-1480 International Journal of Control, 80, 9, 1417-1480 2007 Refereed English Research paper(scientific journal)
Yoshio Ebihara, Tomomichi Hagiwara Yoshio Ebihara, Tomomichi Hagiwara Yoshio Ebihara, Tomomichi Hagiwara On the degree of polynomial parameter-dependent Lyapunov functions for robust stability of single parameter-dependent LTI systems: A counter-example to Barmish's conjecture On the degree of polynomial parameter-dependent Lyapunov functions for robust stability of single parameter-dependent LTI systems: A counter-example to Barmish's conjecture On the degree of polynomial parameter-dependent Lyapunov functions for robust stability of single parameter-dependent LTI systems: A counter-example to Barmish's conjecture AUTOMATICA, 42, 9, 1599-1603 AUTOMATICA, 42, 9, 1599-1603 AUTOMATICA, 42, 9, 1599-1603 2006/09 English Research paper(scientific journal)
Yoshio Ebihara, Yoshimichi Ito, Tomomichi Hagiwara Yoshio Ebihara, Yoshimichi Ito, Tomomichi Hagiwara Yoshio Ebihara, Yoshimichi Ito, Tomomichi Hagiwara Exact stability analysis of 2-D systems using LMIs Exact stability analysis of 2-D systems using LMIs Exact stability analysis of 2-D systems using LMIs IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 51, 9, 1509-1513 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 51, 9, 1509-1513 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 51, 9, 1509-1513 2006/09 English Research paper(scientific journal)

Tomomichi Hagiwara Tomomichi Hagiwara Tomomichi Hagiwara Discussion on: "Transfer functions and statistical analysis of FDLCP systems described by higher-order differential equations" Discussion on: "Transfer functions and statistical analysis of FDLCP systems described by higher-order differential equations" Discussion on: "Transfer functions and statistical analysis of FDLCP systems described by higher-order differential equations" European Journal of Control, 12, 5, 574-575 European Journal of Control, 12, 5, 574-575 European Journal of Control, 12, 5, 574-575 2006 Refereed English Research paper(scientific journal)

Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara A dilated LMI approach to robust performance analysis of linear time-invariant uncertain systems A dilated LMI approach to robust performance analysis of linear time-invariant uncertain systems A dilated LMI approach to robust performance analysis of linear time-invariant uncertain systems AUTOMATICA, 41, 11, 1933-1941 AUTOMATICA, 41, 11, 1933-1941 AUTOMATICA, 41, 11, 1933-1941 2005/11 English Research paper(scientific journal)
T Hagiwara T Hagiwara T Hagiwara Inertia approach to the Hamiltonian eigenvalue tests for frequency-domain inequality conditions Inertia approach to the Hamiltonian eigenvalue tests for frequency-domain inequality conditions Inertia approach to the Hamiltonian eigenvalue tests for frequency-domain inequality conditions DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 1, 279-283 DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 1, 279-283 DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 1, 279-283 2005 English Research paper(scientific journal)
T Hagiwara T Hagiwara T Hagiwara A study on the spectrum of the sampled-data transfer operator with application to robust exponential stability problems A study on the spectrum of the sampled-data transfer operator with application to robust exponential stability problems A study on the spectrum of the sampled-data transfer operator with application to robust exponential stability problems SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 44, 1, 313-327 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 44, 1, 313-327 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 44, 1, 313-327 2005 Refereed English Research paper(scientific journal)
J Zhou, T Hagiwara J Zhou, T Hagiwara J Zhou, T Hagiwara 2-regularized Nyquist criterion in linear continuous-time periodic systems and its implementation 2-regularized Nyquist criterion in linear continuous-time periodic systems and its implementation 2-regularized Nyquist criterion in linear continuous-time periodic systems and its implementation SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 44, 2, 618-645 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 44, 2, 618-645 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 44, 2, 618-645 2005 Refereed English Research paper(scientific journal)
Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara New dilated LMI characterizations for continuous-time multiobjective controller synthesis New dilated LMI characterizations for continuous-time multiobjective controller synthesis New dilated LMI characterizations for continuous-time multiobjective controller synthesis AUTOMATICA, 40, 11, 2003-2009 AUTOMATICA, 40, 11, 2003-2009 AUTOMATICA, 40, 11, 2003-2009 2004/11 English Research paper(scientific journal)
J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki Spectral characteristics and eigenvalues computation of the harmonic state operators in continuous-time periodic systems Spectral characteristics and eigenvalues computation of the harmonic state operators in continuous-time periodic systems Spectral characteristics and eigenvalues computation of the harmonic state operators in continuous-time periodic systems SYSTEMS & CONTROL LETTERS, 53, 2, 141-155 SYSTEMS & CONTROL LETTERS, 53, 2, 141-155 SYSTEMS & CONTROL LETTERS, 53, 2, 141-155 2004/10 Refereed English Research paper(scientific journal)
Y Ebihara, K Tokuyama, T Hagiwara Y Ebihara, K Tokuyama, T Hagiwara Y Ebihara, K Tokuyama, T Hagiwara Structured controller synthesis using LMI and alternating projection method Structured controller synthesis using LMI and alternating projection method Structured controller synthesis using LMI and alternating projection method INTERNATIONAL JOURNAL OF CONTROL, 77, 12, 1137-1147 INTERNATIONAL JOURNAL OF CONTROL, 77, 12, 1137-1147 INTERNATIONAL JOURNAL OF CONTROL, 77, 12, 1137-1147 2004/08 English Research paper(scientific journal)
Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara On H(infinity) model reduction using LMIs On H(infinity) model reduction using LMIs On H(infinity) model reduction using LMIs IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 49, 7, 1187-1191 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 49, 7, 1187-1191 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 49, 7, 1187-1191 2004/07 English Research paper(scientific journal)
T Hagiwara, T Mugiuda T Hagiwara, T Mugiuda T Hagiwara, T Mugiuda Positive-realness analysis of sampled-data systems and its applications Positive-realness analysis of sampled-data systems and its applications Positive-realness analysis of sampled-data systems and its applications AUTOMATICA, 40, 6, 1043-1051 AUTOMATICA, 40, 6, 1043-1051 AUTOMATICA, 40, 6, 1043-1051 2004/06 English Research paper(scientific journal)

Yoshio Ebihara, Hagiwara Tomomichi Yoshio Ebihara, Hagiwara Tomomichi Yoshio Ebihara, Hagiwara Tomomichi A Dilated LMI Approach to Continuous-Time Gain-Scheduled Controller Synthesis with Parameter-Dependent Lyapunov Variables A Dilated LMI Approach to Continuous-Time Gain-Scheduled Controller Synthesis with Parameter-Dependent Lyapunov Variables A Dilated LMI Approach to Continuous-Time Gain-Scheduled Controller Synthesis with Parameter-Dependent Lyapunov Variables 計測自動制御学会論文集, 39, 8, 734-740 計測自動制御学会論文集, 39, 8, 734-740 計測自動制御学会論文集, 39, 8, 734-740 2003/08 Refereed English Research paper(scientific journal)
J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki Trace formula of linear continuous-time periodic systems via the harmonic Lyapunov equation Trace formula of linear continuous-time periodic systems via the harmonic Lyapunov equation Trace formula of linear continuous-time periodic systems via the harmonic Lyapunov equation INTERNATIONAL JOURNAL OF CONTROL, 76, 5, 488-500 INTERNATIONAL JOURNAL OF CONTROL, 76, 5, 488-500 INTERNATIONAL JOURNAL OF CONTROL, 76, 5, 488-500 2003 Refereed English Research paper(scientific journal)
E Furutani, T Hagiwara, M Araki E Furutani, T Hagiwara, M Araki E Furutani, T Hagiwara, M Araki Two-degree-of-freedom design method of state-predictive LQI servo systems Two-degree-of-freedom design method of state-predictive LQI servo systems Two-degree-of-freedom design method of state-predictive LQI servo systems IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 149, 5, 365-378 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 149, 5, 365-378 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 149, 5, 365-378 2002/09 English Research paper(scientific journal)
J Zhou, T Hagiwara J Zhou, T Hagiwara J Zhou, T Hagiwara H-2 and H-infinity norm computations of linear continuous-time periodic systems via the skew analysis of frequency response operators H-2 and H-infinity norm computations of linear continuous-time periodic systems via the skew analysis of frequency response operators H-2 and H-infinity norm computations of linear continuous-time periodic systems via the skew analysis of frequency response operators AUTOMATICA, 38, 8, 1381-1387 AUTOMATICA, 38, 8, 1381-1387 AUTOMATICA, 38, 8, 1381-1387 2002/08 English Research paper(scientific journal)
S Tanaka, T Hagiwara, M Araki S Tanaka, T Hagiwara, M Araki S Tanaka, T Hagiwara, M Araki A study on the optimal cost for the H(infinity) problem of discrete linear periodically time-varying systems A study on the optimal cost for the H(infinity) problem of discrete linear periodically time-varying systems A study on the optimal cost for the H(infinity) problem of discrete linear periodically time-varying systems SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 41, 2, 362-379 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 41, 2, 362-379 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 41, 2, 362-379 2002/07 English Research paper(scientific journal)
T Hagiwara T Hagiwara T Hagiwara Nyquist stability criterion and positive-realness of sampled-data systems Nyquist stability criterion and positive-realness of sampled-data systems Nyquist stability criterion and positive-realness of sampled-data systems SYSTEMS & CONTROL LETTERS, 45, 4, 283-291 SYSTEMS & CONTROL LETTERS, 45, 4, 283-291 SYSTEMS & CONTROL LETTERS, 45, 4, 283-291 2002/04 English Research paper(scientific journal)
J Zhou, T Hagiwara J Zhou, T Hagiwara J Zhou, T Hagiwara Existence conditions and properties of the frequency response operators of continuous-time periodic systems Existence conditions and properties of the frequency response operators of continuous-time periodic systems Existence conditions and properties of the frequency response operators of continuous-time periodic systems SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 40, 6, 1867-1887 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 40, 6, 1867-1887 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 40, 6, 1867-1887 2002/03 English Research paper(scientific journal)
J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki Stability analysis of continuous-time periodic systems via the harmonic analysis Stability analysis of continuous-time periodic systems via the harmonic analysis Stability analysis of continuous-time periodic systems via the harmonic analysis IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 47, 2, 292-298 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 47, 2, 292-298 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 47, 2, 292-298 2002/02 English Research paper(scientific journal)
Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach (vol 46, pg 369, 2001) Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach (vol 46, pg 369, 2001) Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach (vol 46, pg 369, 2001) IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 47, 1, 201-201 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 47, 1, 201-201 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 47, 1, 201-201 2002/01 English Research paper(scientific journal)
T Hagiwara T Hagiwara T Hagiwara Spectral analysis and singular value computations of the noncompact frequency response and compression operators in sampled-data systems Spectral analysis and singular value computations of the noncompact frequency response and compression operators in sampled-data systems Spectral analysis and singular value computations of the noncompact frequency response and compression operators in sampled-data systems SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 41, 5, 1350-1371 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 41, 5, 1350-1371 SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 41, 5, 1350-1371 2002 English Research paper(scientific journal)
Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Time-sharing multirate sample-hold controllers and their application to reliable stabilization Time-sharing multirate sample-hold controllers and their application to reliable stabilization Time-sharing multirate sample-hold controllers and their application to reliable stabilization DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 8, 4, 445-463 DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 8, 4, 445-463 DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 8, 4, 445-463 2001/12 English Research paper(scientific journal)
T Hagiwara, M Suyama, M Araki T Hagiwara, M Suyama, M Araki T Hagiwara, M Suyama, M Araki Upper and lower bounds of the frequency response gain of sampled-data systems Upper and lower bounds of the frequency response gain of sampled-data systems Upper and lower bounds of the frequency response gain of sampled-data systems AUTOMATICA, 37, 9, 1363-1370 AUTOMATICA, 37, 9, 1363-1370 AUTOMATICA, 37, 9, 1363-1370 2001/09 English Research paper(scientific journal)
J Zhou, T Hagiwara J Zhou, T Hagiwara J Zhou, T Hagiwara Computing frequency response gains of linear continuous-time periodic systems Computing frequency response gains of linear continuous-time periodic systems Computing frequency response gains of linear continuous-time periodic systems IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 148, 4, 291-297 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 148, 4, 291-297 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 148, 4, 291-297 2001/07 English Research paper(scientific journal)
Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 46, 3, 369-381 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 46, 3, 369-381 IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 46, 3, 369-381 2001/03 English Research paper(scientific journal)
Y Ebihara, T Hagiwara, M Araki Y Ebihara, T Hagiwara, M Araki Y Ebihara, T Hagiwara, M Araki Sequential tuning methods of LQ/LQI controllers for multivariable systems and their application to hot strip mills Sequential tuning methods of LQ/LQI controllers for multivariable systems and their application to hot strip mills Sequential tuning methods of LQ/LQI controllers for multivariable systems and their application to hot strip mills INTERNATIONAL JOURNAL OF CONTROL, 73, 15, 1392-1404 INTERNATIONAL JOURNAL OF CONTROL, 73, 15, 1392-1404 INTERNATIONAL JOURNAL OF CONTROL, 73, 15, 1392-1404 2000/10 English Research paper(scientific journal)
Y Kakutani, T Hagiwara, M Araki Y Kakutani, T Hagiwara, M Araki Y Kakutani, T Hagiwara, M Araki LMI representation of the shifted Popov criterion LMI representation of the shifted Popov criterion LMI representation of the shifted Popov criterion AUTOMATICA, 36, 5, 765-770 AUTOMATICA, 36, 5, 765-770 AUTOMATICA, 36, 5, 765-770 2000/05 English Research paper(scientific journal)

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Author Author(Japanese) Author(English) Title Title(Japanese) Title(English) Bibliography Bibliography(Japanese) Bibliography(English) Publication date Refereed paper Language Publishing type
J. H. Kim, T. Hagiwara J. H. Kim, T. Hagiwara J. H. Kim, T. Hagiwara Computing the $L_\infty$ -Induced Norm of LTI Systems Computing the $L_\infty$ -Induced Norm of LTI Systems Computing the $L_\infty$ -Induced Norm of LTI Systems 53rd IEEE Conference on Decision and Control 53rd IEEE Conference on Decision and Control 53rd IEEE Conference on Decision and Control 2014 Refereed
J. H. Kim, T. Hagiwara J. H. Kim, T. Hagiwara J. H. Kim, T. Hagiwara Characterization of the Induced Norms from $L_2$ to $L_\infty$ and from $l_2$ to $l_\infty$ and Their Computations Characterization of the Induced Norms from $L_2$ to $L_\infty$ and from $l_2$ to $l_\infty$ and Their Computations Characterization of the Induced Norms from $L_2$ to $L_\infty$ and from $l_2$ to $l_\infty$ and Their Computations SICE Annual Conference 2014 SICE Annual Conference 2014 SICE Annual Conference 2014 2014 Refereed
Y. Masui, K. Hirata, T. Hagiwara Y. Masui, K. Hirata, T. Hagiwara Y. Masui, K. Hirata, T. Hagiwara On Numerical Computation of the Spectrum of Monodromy Operators via Higher-Order Hold Discretization On Numerical Computation of the Spectrum of Monodromy Operators via Higher-Order Hold Discretization On Numerical Computation of the Spectrum of Monodromy Operators via Higher-Order Hold Discretization 21st International Symposium on Mathematical Theory of Networks and Systems 21st International Symposium on Mathematical Theory of Networks and Systems 21st International Symposium on Mathematical Theory of Networks and Systems 2014 Refereed
J. H. Kim, T. Hagiwara J. H. Kim, T. Hagiwara J. H. Kim, T. Hagiwara A Study on Piecewise Linear Approximation in the $L_1$ Optimal Control Problem of Sampled-Data Systems A Study on Piecewise Linear Approximation in the $L_1$ Optimal Control Problem of Sampled-Data Systems A Study on Piecewise Linear Approximation in the $L_1$ Optimal Control Problem of Sampled-Data Systems 21st International Symposium on Mathematical Theory of Networks and Systems 21st International Symposium on Mathematical Theory of Networks and Systems 21st International Symposium on Mathematical Theory of Networks and Systems 2014 Refereed
Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara State Feedback Synthesis for Robust Stabilization of Discrete-Time Linear Systems Characterized by Stochastic Polytopes State Feedback Synthesis for Robust Stabilization of Discrete-Time Linear Systems Characterized by Stochastic Polytopes State Feedback Synthesis for Robust Stabilization of Discrete-Time Linear Systems Characterized by Stochastic Polytopes 2014 European Control Conference 2014 European Control Conference 2014 European Control Conference 2014 Refereed
Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Robust Stability Analysis of Discrete-Time Linear Systems Characterized by Stochastic Polytopes Robust Stability Analysis of Discrete-Time Linear Systems Characterized by Stochastic Polytopes Robust Stability Analysis of Discrete-Time Linear Systems Characterized by Stochastic Polytopes 2014 American Control Conference 2014 American Control Conference 2014 American Control Conference 2014 Refereed
Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Jung Hoon Kim, Tomomichi Hagiwara Computing the L-infinity[0, h)-induced norm of a compression operator Computing the L-infinity[0, h)-induced norm of a compression operator Computing the L-infinity[0, h)-induced norm of a compression operator 2013 EUROPEAN CONTROL CONFERENCE (ECC), 3688-3693 2013 EUROPEAN CONTROL CONFERENCE (ECC), 3688-3693 2013 EUROPEAN CONTROL CONFERENCE (ECC), 3688-3693 2013 Refereed English
Yuki Saito, Tomomichi Hagiwara Yuki Saito, Tomomichi Hagiwara Yuki Saito, Tomomichi Hagiwara Stability Analysis of Time-Delay Systems Based on a Power of the Monodromy Operator Stability Analysis of Time-Delay Systems Based on a Power of the Monodromy Operator Stability Analysis of Time-Delay Systems Based on a Power of the Monodromy Operator 2013 EUROPEAN CONTROL CONFERENCE (ECC), 4424-4429 2013 EUROPEAN CONTROL CONFERENCE (ECC), 4424-4429 2013 EUROPEAN CONTROL CONFERENCE (ECC), 4424-4429 2013 Refereed English
R. Yamamoto, Y. Hosoe, T. Hagiwara R. Yamamoto, Y. Hosoe, T. Hagiwara R. Yamamoto, Y. Hosoe, T. Hagiwara Introducing integral compensation into controller synthesis based on noncausal LPTV Scaling and control experiments with cart inverted pendulum Introducing integral compensation into controller synthesis based on noncausal LPTV Scaling and control experiments with cart inverted pendulum Introducing integral compensation into controller synthesis based on noncausal LPTV Scaling and control experiments with cart inverted pendulum Proceedings of the SICE Annual Conference, 446-451 Proceedings of the SICE Annual Conference, 446-451 Proceedings of the SICE Annual Conference, 446-451 2013 Refereed English
Kei Katayama, Yohei Hosoe, Tomomichi Hagiwara Kei Katayama, Yohei Hosoe, Tomomichi Hagiwara Kei Katayama, Yohei Hosoe, Tomomichi Hagiwara Demonstrating the effectiveness of noncausal lptv scaling through control experiments with cart inverted pendulum Demonstrating the effectiveness of noncausal lptv scaling through control experiments with cart inverted pendulum Demonstrating the effectiveness of noncausal lptv scaling through control experiments with cart inverted pendulum IFAC Proceedings Volumes (IFAC-PapersOnline), 5, 1, 143-148 IFAC Proceedings Volumes (IFAC-PapersOnline), 5, 1, 143-148 IFAC Proceedings Volumes (IFAC-PapersOnline), 5, 1, 143-148 2013 Refereed English
T. Yamazaki, T. Hagiwara T. Yamazaki, T. Hagiwara T. Yamazaki, T. Hagiwara A note on representation of nonlinear time-varying delay-differential equations as time-delay feedback systems A note on representation of nonlinear time-varying delay-differential equations as time-delay feedback systems A note on representation of nonlinear time-varying delay-differential equations as time-delay feedback systems 2013 9th Asian Control Conference, ASCC 2013 2013 9th Asian Control Conference, ASCC 2013 2013 9th Asian Control Conference, ASCC 2013 2013 Refereed English
J.H. Kim, T. Hagiwara, K. Hirata J.H. Kim, T. Hagiwara, K. Hirata J.H. Kim, T. Hagiwara, K. Hirata A study on the spectrum of monodromy operator for a time-delay system A study on the spectrum of monodromy operator for a time-delay system A study on the spectrum of monodromy operator for a time-delay system 2013 9th Asian Control Conference, ASCC 2013 2013 9th Asian Control Conference, ASCC 2013 2013 9th Asian Control Conference, ASCC 2013 2013 Refereed English
Kim, Jung Hoon, Hagiwara, Tomomichi Kim, Jung Hoon, Hagiwara, Tomomichi Kim, Jung Hoon, Hagiwara, Tomomichi Quasi-Finite-Rank Approximation of Compression Operators Based on L-infinity[0, h]-Induced Norm Quasi-Finite-Rank Approximation of Compression Operators Based on L-infinity[0, h]-Induced Norm Quasi-Finite-Rank Approximation of Compression Operators Based on L-infinity[0, h]-Induced Norm 2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE),, pp. 2238-2243 2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE),, pp. 2238-2243 2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE),, pp. 2238-2243 2012 Refereed English
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Robust Stability Analysis Based on Noncausal LPTV FIR Scaling: Explicit Procedure and Relationship with Causal LTI FIR Scaling Robust Stability Analysis Based on Noncausal LPTV FIR Scaling: Explicit Procedure and Relationship with Causal LTI FIR Scaling Robust Stability Analysis Based on Noncausal LPTV FIR Scaling: Explicit Procedure and Relationship with Causal LTI FIR Scaling 2012 IEEE 51ST ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 240-247 2012 IEEE 51ST ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 240-247 2012 IEEE 51ST ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 240-247 2012 Refereed English
Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Robust stability analysis based on discrete-time FIR scaling Robust stability analysis based on discrete-time FIR scaling Robust stability analysis based on discrete-time FIR scaling Proceedings of the American Control Conference, 5972-5979 Proceedings of the American Control Conference, 5972-5979 Proceedings of the American Control Conference, 5972-5979 2012 Refereed English
T. Hagiwara T. Hagiwara T. Hagiwara A note on separator-type robust stability theorem and well-posedness of linear time-invariant systems A note on separator-type robust stability theorem and well-posedness of linear time-invariant systems A note on separator-type robust stability theorem and well-posedness of linear time-invariant systems Proceedings of the 2011 Australian Control Conference, AUCC 2011, 242-247 Proceedings of the 2011 Australian Control Conference, AUCC 2011, 242-247 Proceedings of the 2011 Australian Control Conference, AUCC 2011, 242-247 2011 Refereed English
Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Robust stability analysis with cycling-based LPTV scaling and its relationship with lifting-based approach Robust stability analysis with cycling-based LPTV scaling and its relationship with lifting-based approach Robust stability analysis with cycling-based LPTV scaling and its relationship with lifting-based approach Proceedings of the SICE Annual Conference, 1782-1790 Proceedings of the SICE Annual Conference, 1782-1790 Proceedings of the SICE Annual Conference, 1782-1790 2011 Refereed English
T. Yamazaki, T. Hagiwara T. Yamazaki, T. Hagiwara T. Yamazaki, T. Hagiwara A note on mutual conversion between linear time-invariant delay-differential equations and time-delay feedback systems A note on mutual conversion between linear time-invariant delay-differential equations and time-delay feedback systems A note on mutual conversion between linear time-invariant delay-differential equations and time-delay feedback systems Proceedings of the SICE Annual Conference, 267-276 Proceedings of the SICE Annual Conference, 267-276 Proceedings of the SICE Annual Conference, 267-276 2011 Refereed English
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Relationship between noncausal linear periodically time-varying scaling and causal linear time-invariant scaling for discrete-time systems Relationship between noncausal linear periodically time-varying scaling and causal linear time-invariant scaling for discrete-time systems Relationship between noncausal linear periodically time-varying scaling and causal linear time-invariant scaling for discrete-time systems IFAC Proceedings Volumes (IFAC-PapersOnline), 18, 1, 3384-3391 IFAC Proceedings Volumes (IFAC-PapersOnline), 18, 1, 3384-3391 IFAC Proceedings Volumes (IFAC-PapersOnline), 18, 1, 3384-3391 2011 Refereed English
Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Yohei Hosoe, Tomomichi Hagiwara Infinite Matrix Representations of Robust Stability Conditions for Discrete-Time Systems Infinite Matrix Representations of Robust Stability Conditions for Discrete-Time Systems Infinite Matrix Representations of Robust Stability Conditions for Discrete-Time Systems 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL CONFERENCE (CDC-ECC), 1359-1366 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL CONFERENCE (CDC-ECC), 1359-1366 2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL CONFERENCE (CDC-ECC), 1359-1366 2011 Refereed English

T. Hagiwara, T. Fujinami T. Hagiwara, T. Fujinami T. Hagiwara, T. Fujinami Fast-lifting approach to the computation of the spectral radius of neutral time-delay systems Fast-lifting approach to the computation of the spectral radius of neutral time-delay systems Fast-lifting approach to the computation of the spectral radius of neutral time-delay systems IFAC Proceedings Volumes (IFAC-PapersOnline), PART 1, 63-68 IFAC Proceedings Volumes (IFAC-PapersOnline), PART 1, 63-68 IFAC Proceedings Volumes (IFAC-PapersOnline), PART 1, 63-68 2010 Refereed English
Yoshio Ebihara, Yoshinori Fujiwara, Tomomichi Hagiwara, Masayuki Sato Yoshio Ebihara, Yoshinori Fujiwara, Tomomichi Hagiwara, Masayuki Sato Yoshio Ebihara, Yoshinori Fujiwara, Tomomichi Hagiwara, Masayuki Sato 2DOF control system design for maneuverability matching and gust disturbance rejection in in-flight simulator MuPAL-α 2DOF control system design for maneuverability matching and gust disturbance rejection in in-flight simulator MuPAL-α 2DOF control system design for maneuverability matching and gust disturbance rejection in in-flight simulator MuPAL-α Proceedings of the SICE Annual Conference, 524-528 Proceedings of the SICE Annual Conference, 524-528 Proceedings of the SICE Annual Conference, 524-528 2010 Refereed English
Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Y. Hosoe, T. Hagiwara Effects induced by noncausality of scaling on robust stability analysis of discrete-time periodically time-varying systems Effects induced by noncausality of scaling on robust stability analysis of discrete-time periodically time-varying systems Effects induced by noncausality of scaling on robust stability analysis of discrete-time periodically time-varying systems Proceedings of the SICE Annual Conference, 3017-3023 Proceedings of the SICE Annual Conference, 3017-3023 Proceedings of the SICE Annual Conference, 3017-3023 2010 Refereed English
Yoshio Ebihara, Yusuke Matsuda, Tomomichi Hagiwara Yoshio Ebihara, Yusuke Matsuda, Tomomichi Hagiwara Yoshio Ebihara, Yusuke Matsuda, Tomomichi Hagiwara Asymptotic Exactness of Dual LMI Approach for Robust Performance Analysis of Uncertain LTI Systems Asymptotic Exactness of Dual LMI Approach for Robust Performance Analysis of Uncertain LTI Systems Asymptotic Exactness of Dual LMI Approach for Robust Performance Analysis of Uncertain LTI Systems 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 1472-1477 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 1472-1477 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 1472-1477 2010 Refereed English
K. Hirata, A. Itokazu, T. Hagiwara K. Hirata, A. Itokazu, T. Hagiwara K. Hirata, A. Itokazu, T. Hagiwara On numerical computation of the spectrum of a class of integral operators via non-causal hold discretization On numerical computation of the spectrum of a class of integral operators via non-causal hold discretization On numerical computation of the spectrum of a class of integral operators via non-causal hold discretization IFAC Proceedings Volumes (IFAC-PapersOnline), 8, PART 1, 382-389 IFAC Proceedings Volumes (IFAC-PapersOnline), 8, PART 1, 382-389 IFAC Proceedings Volumes (IFAC-PapersOnline), 8, PART 1, 382-389 2009 Refereed English
K. Morioka, T. Hagiwara K. Morioka, T. Hagiwara K. Morioka, T. Hagiwara Stability analysis of nonlinear sampled-data systems via causal linear periodically time-varying scaling Stability analysis of nonlinear sampled-data systems via causal linear periodically time-varying scaling Stability analysis of nonlinear sampled-data systems via causal linear periodically time-varying scaling ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 2458-2463 ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 2458-2463 ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 2458-2463 2009 Refereed English
T. Inui, T. Hagiwara T. Inui, T. Hagiwara T. Inui, T. Hagiwara A study on quadratic stability of optimal regulators under gain adjustment A study on quadratic stability of optimal regulators under gain adjustment A study on quadratic stability of optimal regulators under gain adjustment ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 1504-1509 ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 1504-1509 ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 1504-1509 2009 Refereed English
Yoshio Ebihara, Yuki Kuboyama, Tomomichi Hagiwara, Dimitri Peaucelle, Denis Arzelier Yoshio Ebihara, Yuki Kuboyama, Tomomichi Hagiwara, Dimitri Peaucelle, Denis Arzelier Yoshio Ebihara, Yuki Kuboyama, Tomomichi Hagiwara, Dimitri Peaucelle, Denis Arzelier Further Results on Periodically Time-Varying Memory State-Feedback Controller Synthesis for Discrete-Time Linear Systems Further Results on Periodically Time-Varying Memory State-Feedback Controller Synthesis for Discrete-Time Linear Systems Further Results on Periodically Time-Varying Memory State-Feedback Controller Synthesis for Discrete-Time Linear Systems PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 702-707 PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 702-707 PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 702-707 2009 Refereed English
Yusuke Matsuda, Yoshio Ebihara, Tomomichi Hagiwara Yusuke Matsuda, Yoshio Ebihara, Tomomichi Hagiwara Yusuke Matsuda, Yoshio Ebihara, Tomomichi Hagiwara Constructing a Sequence of Relaxation Problems for Robustness Analysis of Uncertain LTI Systems via Dual LMIs Constructing a Sequence of Relaxation Problems for Robustness Analysis of Uncertain LTI Systems via Dual LMIs Constructing a Sequence of Relaxation Problems for Robustness Analysis of Uncertain LTI Systems via Dual LMIs PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 2174-2179 PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 2174-2179 PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 2174-2179 2009 Refereed English
T. Hagiwara, Y. Ohara T. Hagiwara, Y. Ohara T. Hagiwara, Y. Ohara Frequency-dependent scaling induced by noncausal linear periodically time-varying scaling for discre Frequency-dependent scaling induced by noncausal linear periodically time-varying scaling for discre Frequency-dependent scaling induced by noncausal linear periodically time-varying scaling for discre IFAC Proceedings Volumes (IFAC-PapersOnline), 17, 1 PART 1 IFAC Proceedings Volumes (IFAC-PapersOnline), 17, 1 PART 1 IFAC Proceedings Volumes (IFAC-PapersOnline), 17, 1 PART 1 2008 Refereed English
Y. Onishi, Y. Ebihara, T. Hagiwara Y. Onishi, Y. Ebihara, T. Hagiwara Y. Onishi, Y. Ebihara, T. Hagiwara Extracting worst case perturbations for robustness analysis of parameter-dependent LTI systems Extracting worst case perturbations for robustness analysis of parameter-dependent LTI systems Extracting worst case perturbations for robustness analysis of parameter-dependent LTI systems IFAC Proceedings Volumes (IFAC-PapersOnline), 17, 1 PART 1 IFAC Proceedings Volumes (IFAC-PapersOnline), 17, 1 PART 1 IFAC Proceedings Volumes (IFAC-PapersOnline), 17, 1 PART 1 2008 Refereed English
Tomomichi Hagiwara Tomomichi Hagiwara Tomomichi Hagiwara Fast-Lifting Approach to Time-Delay Systems: Fundamental Framework Fast-Lifting Approach to Time-Delay Systems: Fundamental Framework Fast-Lifting Approach to Time-Delay Systems: Fundamental Framework 47TH IEEE CONFERENCE ON DECISION AND CONTROL, 2008 (CDC 2008), 5292-5299 47TH IEEE CONFERENCE ON DECISION AND CONTROL, 2008 (CDC 2008), 5292-5299 47TH IEEE CONFERENCE ON DECISION AND CONTROL, 2008 (CDC 2008), 5292-5299 2008 Refereed English
Tomomichi Hagiwara, Koichiro Okada Tomomichi Hagiwara, Koichiro Okada Tomomichi Hagiwara, Koichiro Okada gamma-independent H-infinity-discretization of sampled-data systems by modified fast-sample/fast-hold approximation with fast lifting gamma-independent H-infinity-discretization of sampled-data systems by modified fast-sample/fast-hold approximation with fast lifting gamma-independent H-infinity-discretization of sampled-data systems by modified fast-sample/fast-hold approximation with fast lifting 2008 AMERICAN CONTROL CONFERENCE, VOLS 1-12, 4966-4972 2008 AMERICAN CONTROL CONFERENCE, VOLS 1-12, 4966-4972 2008 AMERICAN CONTROL CONFERENCE, VOLS 1-12, 4966-4972 2008 Refereed English
Y. Ebihara, Y. Onishi, T. Hagiwara Y. Ebihara, Y. Onishi, T. Hagiwara Y. Ebihara, Y. Onishi, T. Hagiwara Robust performance analysis of uncertain LTI systems: Dual LMI approach and verifications for exactness Robust performance analysis of uncertain LTI systems: Dual LMI approach and verifications for exactness Robust performance analysis of uncertain LTI systems: Dual LMI approach and verifications for exactness Proceedings of the IEEE Conference on Decision and Control, 6304-6309 Proceedings of the IEEE Conference on Decision and Control, 6304-6309 Proceedings of the IEEE Conference on Decision and Control, 6304-6309 2007 Refereed English
T. Hagiwara, H. Umeda T. Hagiwara, H. Umeda T. Hagiwara, H. Umeda Robust stability analysis of sampled-data systems with noncausal periodically time-varying scaling: Optimization of scaling via approximate discretization and error bound analysis Robust stability analysis of sampled-data systems with noncausal periodically time-varying scaling: Optimization of scaling via approximate discretization and error bound analysis Robust stability analysis of sampled-data systems with noncausal periodically time-varying scaling: Optimization of scaling via approximate discretization and error bound analysis Proceedings of the IEEE Conference on Decision and Control, 450-457 Proceedings of the IEEE Conference on Decision and Control, 450-457 Proceedings of the IEEE Conference on Decision and Control, 450-457 2007 Refereed English
Y. Ebihara, T. Hagiwara Y. Ebihara, T. Hagiwara Y. Ebihara, T. Hagiwara Further results on computing the distance to uncontrollability via LMIs Further results on computing the distance to uncontrollability via LMIs Further results on computing the distance to uncontrollability via LMIs Proceedings of the American Control Conference, 6157-6162 Proceedings of the American Control Conference, 6157-6162 Proceedings of the American Control Conference, 6157-6162 2007 Refereed English
Y. Ebihara, D. Peaucelle, D. Arzelier, T. Hagiwara Y. Ebihara, D. Peaucelle, D. Arzelier, T. Hagiwara Y. Ebihara, D. Peaucelle, D. Arzelier, T. Hagiwara Robust H<sub>2</sub> performance analysis of uncertain lti systems via polynomially parameter-dependent Lyapunov functions Robust H<sub>2</sub> performance analysis of uncertain lti systems via polynomially parameter-dependent Lyapunov functions Robust H<sub>2</sub> performance analysis of uncertain lti systems via polynomially parameter-dependent Lyapunov functions IFAC Proceedings Volumes (IFAC-PapersOnline), 5, PART 1, 435-440 IFAC Proceedings Volumes (IFAC-PapersOnline), 5, PART 1, 435-440 IFAC Proceedings Volumes (IFAC-PapersOnline), 5, PART 1, 435-440 2006 Refereed English
Yoshio Ebihara, Tomomichi Hagiwara Yoshio Ebihara, Tomomichi Hagiwara Yoshio Ebihara, Tomomichi Hagiwara Computing the distance to uncontrollability via LMIs: Lower and upper bounds computation and exactness verification Computing the distance to uncontrollability via LMIs: Lower and upper bounds computation and exactness verification Computing the distance to uncontrollability via LMIs: Lower and upper bounds computation and exactness verification PROCEEDINGS OF THE 45TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 5772-5777 PROCEEDINGS OF THE 45TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 5772-5777 PROCEEDINGS OF THE 45TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 5772-5777 2006 Refereed English
T. Hagiwara, H. Umeda, M. Sawada T. Hagiwara, H. Umeda, M. Sawada T. Hagiwara, H. Umeda, M. Sawada Discretization of continuous-time controllers based on the Hilbert-Schmidt norm of the sampled-data frequency response Discretization of continuous-time controllers based on the Hilbert-Schmidt norm of the sampled-data frequency response Discretization of continuous-time controllers based on the Hilbert-Schmidt norm of the sampled-data frequency response Proceedings of the IEEE Conference on Decision and Control, 4891-4898 Proceedings of the IEEE Conference on Decision and Control, 4891-4898 Proceedings of the IEEE Conference on Decision and Control, 4891-4898 2006 Refereed English
T. Hagiwara, R. Mori T. Hagiwara, R. Mori T. Hagiwara, R. Mori Robust stability analysis of sampled-data systems via periodically time-varying scaling Robust stability analysis of sampled-data systems via periodically time-varying scaling Robust stability analysis of sampled-data systems via periodically time-varying scaling Proceedings of the American Control Conference, 2006, 213-219 Proceedings of the American Control Conference, 2006, 213-219 Proceedings of the American Control Conference, 2006, 213-219 2006 Refereed English
T. Hagiwara, H. Tanaka T. Hagiwara, H. Tanaka T. Hagiwara, H. Tanaka A study on robust stability analysis of sampled-data systems against parametric uncertainties via a separator-type stability theorem A study on robust stability analysis of sampled-data systems against parametric uncertainties via a separator-type stability theorem A study on robust stability analysis of sampled-data systems against parametric uncertainties via a separator-type stability theorem 2006 SICE-ICASE International Joint Conference, 2969-2973 2006 SICE-ICASE International Joint Conference, 2969-2973 2006 SICE-ICASE International Joint Conference, 2969-2973 2006 Refereed English
Y. Ebihara, K. Maeda, T. Hagiwara Y. Ebihara, K. Maeda, T. Hagiwara Y. Ebihara, K. Maeda, T. Hagiwara Robust D-stability analysis of uncertain polynomial matrices via polynomial-type multipliers Robust D-stability analysis of uncertain polynomial matrices via polynomial-type multipliers Robust D-stability analysis of uncertain polynomial matrices via polynomial-type multipliers IFAC Proceedings Volumes (IFAC-PapersOnline), 16, 191-196 IFAC Proceedings Volumes (IFAC-PapersOnline), 16, 191-196 IFAC Proceedings Volumes (IFAC-PapersOnline), 16, 191-196 2005 Refereed English
J. Zhou, T. Hagiwara J. Zhou, T. Hagiwara J. Zhou, T. Hagiwara Finite-dimensional models in evaluating the H<sub>2</sub> norm of continuous-time periodic systems Finite-dimensional models in evaluating the H<sub>2</sub> norm of continuous-time periodic systems Finite-dimensional models in evaluating the H<sub>2</sub> norm of continuous-time periodic systems IFAC Proceedings Volumes (IFAC-PapersOnline), 16, 260-265 IFAC Proceedings Volumes (IFAC-PapersOnline), 16, 260-265 IFAC Proceedings Volumes (IFAC-PapersOnline), 16, 260-265 2005 Refereed English
Yoshio Ebihara, Dimitri Peaucelle, Denis Arzelier, Tomomichi Hagiwara Yoshio Ebihara, Dimitri Peaucelle, Denis Arzelier, Tomomichi Hagiwara Yoshio Ebihara, Dimitri Peaucelle, Denis Arzelier, Tomomichi Hagiwara Robust performance analysis of linear time-invariant uncertain systems by taking higher-order time-derivatives of the state Robust performance analysis of linear time-invariant uncertain systems by taking higher-order time-derivatives of the state Robust performance analysis of linear time-invariant uncertain systems by taking higher-order time-derivatives of the state 2005 44th IEEE Conference on Decision and Control & European Control Conference, Vols 1-8, 2005, 5030-5035 2005 44th IEEE Conference on Decision and Control & European Control Conference, Vols 1-8, 2005, 5030-5035 2005 44th IEEE Conference on Decision and Control & European Control Conference, Vols 1-8, 2005, 5030-5035 2005 Refereed English
Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara On model reduction using LMI's On model reduction using LMI's On model reduction using LMI's PROCEEDINGS OF THE 2004 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1, 774-779 PROCEEDINGS OF THE 2004 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1, 774-779 PROCEEDINGS OF THE 2004 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1, 774-779 2004 Refereed English
J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki J Zhou, T Hagiwara, M Araki Harmonic Hamiltonian test for the H-infinity performance in linear continuous-time periodic systems Harmonic Hamiltonian test for the H-infinity performance in linear continuous-time periodic systems Harmonic Hamiltonian test for the H-infinity performance in linear continuous-time periodic systems 42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 2, 1795-1800 42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 2, 1795-1800 42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 2, 1795-1800 2003 Refereed English
Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Structured controller synthesis using LMI and alternating projection method Structured controller synthesis using LMI and alternating projection method Structured controller synthesis using LMI and alternating projection method 42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 6, 5632-5637 42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 6, 5632-5637 42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 6, 5632-5637 2003 Refereed English
E Furutani, T Hagiwara, M Araki E Furutani, T Hagiwara, M Araki E Furutani, T Hagiwara, M Araki Two-degree-of-freedom design method of state-predictive LQI servo systems Two-degree-of-freedom design method of state-predictive LQI servo systems Two-degree-of-freedom design method of state-predictive LQI servo systems IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 149, 5, 365-378 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 149, 5, 365-378 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 149, 5, 365-378 2002/09 Refereed English
Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Robust controller synthesis with parameter-dependent Lyapunov variables: A dilated LMI approach Robust controller synthesis with parameter-dependent Lyapunov variables: A dilated LMI approach Robust controller synthesis with parameter-dependent Lyapunov variables: A dilated LMI approach PROCEEDINGS OF THE 41ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 4, 4179-4184 PROCEEDINGS OF THE 41ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 4, 4179-4184 PROCEEDINGS OF THE 41ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 4, 4179-4184 2002 Refereed English
Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara Y Ebihara, T Hagiwara New dilated LMI characterizations for continuous-time control design and robust multiobjective control New dilated LMI characterizations for continuous-time control design and robust multiobjective control New dilated LMI characterizations for continuous-time control design and robust multiobjective control PROCEEDINGS OF THE 2002 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1-6, 47-52 PROCEEDINGS OF THE 2002 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1-6, 47-52 PROCEEDINGS OF THE 2002 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1-6, 47-52 2002 Refereed English
J Zhou, T Hagiwara J Zhou, T Hagiwara J Zhou, T Hagiwara Computing frequency response gains of linear continuous-time periodic systems Computing frequency response gains of linear continuous-time periodic systems Computing frequency response gains of linear continuous-time periodic systems IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 148, 4, 291-297 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 148, 4, 291-297 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 148, 4, 291-297 2001/07 Refereed English
J. Zhou, T. Hagiwara J. Zhou, T. Hagiwara J. Zhou, T. Hagiwara H<sub>∞</sub> norm computation of continuous-time periodic systems - Asymptotic Hamiltonian test and modified bisection algorithm H<sub>∞</sub> norm computation of continuous-time periodic systems - Asymptotic Hamiltonian test and modified bisection algorithm H<sub>∞</sub> norm computation of continuous-time periodic systems - Asymptotic Hamiltonian test and modified bisection algorithm Proceedings of the SICE Annual Conference, 164-169 Proceedings of the SICE Annual Conference, 164-169 Proceedings of the SICE Annual Conference, 164-169 2001 Refereed English
J Zhou, T Hagiwara J Zhou, T Hagiwara J Zhou, T Hagiwara Existence conditions and applications of shifting sliding mode control Existence conditions and applications of shifting sliding mode control Existence conditions and applications of shifting sliding mode control PROCEEDINGS OF THE 40TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-5, 2, 1415-1420 PROCEEDINGS OF THE 40TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-5, 2, 1415-1420 PROCEEDINGS OF THE 40TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-5, 2, 1415-1420 2001 Refereed English
Y Ebihara, T Hagiwara, T Shimomura Y Ebihara, T Hagiwara, T Shimomura Y Ebihara, T Hagiwara, T Shimomura Multiobjective state-feedback control design with non-common LMI solutions: Change of variables via affine functions Multiobjective state-feedback control design with non-common LMI solutions: Change of variables via affine functions Multiobjective state-feedback control design with non-common LMI solutions: Change of variables via affine functions PROCEEDINGS OF THE 2001 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2, 848-853 PROCEEDINGS OF THE 2001 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2, 848-853 PROCEEDINGS OF THE 2001 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2, 848-853 2001 Refereed English
Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Y Ito, T Hagiwara, H Maeda, M Araki Further study on the bisection algorithm for the frequency response gain computation of sampled-data systems and related issues Further study on the bisection algorithm for the frequency response gain computation of sampled-data systems and related issues Further study on the bisection algorithm for the frequency response gain computation of sampled-data systems and related issues PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1, 180-184 PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1, 180-184 PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1, 180-184 2000 Refereed English
T Hagiwara T Hagiwara T Hagiwara Nyquist stability criterion and positive realness of sampled-data systems Nyquist stability criterion and positive realness of sampled-data systems Nyquist stability criterion and positive realness of sampled-data systems PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2, 958-962 PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2, 958-962 PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2, 958-962 2000 Refereed English
T Hagiwara, E Furutani, M Araki T Hagiwara, E Furutani, M Araki T Hagiwara, E Furutani, M Araki Optimal observers for disturbance rejection in two-degree-of-freedom LQI servo systems Optimal observers for disturbance rejection in two-degree-of-freedom LQI servo systems Optimal observers for disturbance rejection in two-degree-of-freedom LQI servo systems IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 144, 6, 575-581 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 144, 6, 575-581 IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 144, 6, 575-581 1997/11 Refereed English
Tomomichi Hagiwara, Yuusuke Monobe, Mituhiko Araki Tomomichi Hagiwara, Yuusuke Monobe, Mituhiko Araki Tomomichi Hagiwara, Yuusuke Monobe, Mituhiko Araki On the structure of H<sub>2</sub>-optimal sampled-data controllers On the structure of H<sub>2</sub>-optimal sampled-data controllers On the structure of H<sub>2</sub>-optimal sampled-data controllers Proceedings of the IEEE Conference on Decision and Control, 1 Proceedings of the IEEE Conference on Decision and Control, 1 Proceedings of the IEEE Conference on Decision and Control, 1 1996 Refereed English
T Hagiwara, G Kuroda, M Araki T Hagiwara, G Kuroda, M Araki T Hagiwara, G Kuroda, M Araki Stability of sampled-data systems with a time-invariant memoryless sector nonlinearity Stability of sampled-data systems with a time-invariant memoryless sector nonlinearity Stability of sampled-data systems with a time-invariant memoryless sector nonlinearity PROCEEDINGS OF THE 35TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 2, 1264-1265 PROCEEDINGS OF THE 35TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 2, 1264-1265 PROCEEDINGS OF THE 35TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 2, 1264-1265 1996 Refereed English
Tomomichi Hagiwara, Yoshimichi Ito, Mituhiko Araki Tomomichi Hagiwara, Yoshimichi Ito, Mituhiko Araki Tomomichi Hagiwara, Yoshimichi Ito, Mituhiko Araki Frequency response gains and H<sub>∞</sub>-norm of a sampled-data system Frequency response gains and H<sub>∞</sub>-norm of a sampled-data system Frequency response gains and H<sub>∞</sub>-norm of a sampled-data system Proceedings of the IEEE Conference on Decision and Control, 1, 722-723 Proceedings of the IEEE Conference on Decision and Control, 1, 722-723 Proceedings of the IEEE Conference on Decision and Control, 1, 722-723 1994 Refereed English
Tomomichi Hagiwara, Eiko Furutani, Mituhiko Araki Tomomichi Hagiwara, Eiko Furutani, Mituhiko Araki Tomomichi Hagiwara, Eiko Furutani, Mituhiko Araki Two-degree-of-freedom design method of LQI servo systems - performance deterioration by the introduction of an observer and optimal observer design Two-degree-of-freedom design method of LQI servo systems - performance deterioration by the introduction of an observer and optimal observer design Two-degree-of-freedom design method of LQI servo systems - performance deterioration by the introduction of an observer and optimal observer design Proceedings of the IEEE Conference on Decision and Control, 4, 4204-4209 Proceedings of the IEEE Conference on Decision and Control, 4, 4204-4209 Proceedings of the IEEE Conference on Decision and Control, 4, 4204-4209 1994 Refereed English
M ARAKI, T HAGIWARA, T FUJIMURA, Y GOTO M ARAKI, T HAGIWARA, T FUJIMURA, Y GOTO M ARAKI, T HAGIWARA, T FUJIMURA, Y GOTO ON ROBUST STABILITY OF MULTIRATE DIGITAL-CONTROL SYSTEMS ON ROBUST STABILITY OF MULTIRATE DIGITAL-CONTROL SYSTEMS ON ROBUST STABILITY OF MULTIRATE DIGITAL-CONTROL SYSTEMS PROCEEDINGS OF THE 29TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, 3, 1923-1924 PROCEEDINGS OF THE 29TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, 3, 1923-1924 PROCEEDINGS OF THE 29TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, 3, 1923-1924 1990 Refereed English

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システム制御情報学会産業技術賞 ISCIE Industrial Paper Award システム制御情報学会 Institute of Systems, Control and Information Engineers 2011/05/

システム制御情報学会論文賞 ISCIE Paper Award システム制御情報学会 Institute of Systems, Control and Information Engineers 2014/05/
システム制御情報学会論文賞 ISCIE Paper Award システム制御情報学会 Institute of Systems, Control and Information Engineers 2016/05/__

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ディジタル制御 後期 工学部 2011/04-2012/03

ディジタル制御 Digital Control 後期 工学部 2012/04-2013/03

ディジタル制御 Digital Control 後期 工学部 2013/04-2014/03

ディジタル制御 Digital Control 後期 工学部 2014/04-2015/03

ディジタル制御 Digital Control 後期 工学部 2015/04-2016/03

ディジタル制御 Digital Control 後期 工学部 2016/04-2017/03

ディジタル制御 Digital Control 後期 工学部 2017/04-2018/03

ディジタル制御 Digital Control 後期 工学部 2018/04-2019/03

ディジタル制御 Digital Control 後期 工学部 2019/04-2020/03

ディジタル制御 Digital Control 後期 工学部 2020/04-2021/03

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FD研究検討委員会 委員 2008/04/01-2009/03/31

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システム制御情報学会論文賞 システム制御情報学会 2014/05/
システム制御情報学会論文賞 システム制御情報学会 2016/05/

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