# 小澤 登高

Last Update: 2021/05/13 15:43:38

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Name(Kanji/Kana/Abecedarium Latinum)

Primary Affiliation(Org1/Job title)
Research Institute for Mathematical Sciences (RIMS)/Professor
Affiliated programs (koza)
Org1 Job title
Office 京都大学数理解析研究所 606-8502 RIMS Kyoto University Kyoto 606-8502, Japan
Academic Organizations You are Affiliated to in Japan
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Ph.D. Texas A&M University
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Research Topics
(English)
Operator algebra theory and functional analytic aspects of discrete group theory.
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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
M. Anoussis, N. Ozawa, I. G. Todorov M. Anoussis, N. Ozawa, I. G. Todorov M. Anoussis, N. Ozawa, I. G. Todorov Norms of vector functionals Norms of vector functionals Norms of vector functionals Proc. Amer. Math. Soc., 147, 2057-2068 Proc. Amer. Math. Soc., 147, 2057-2068 Proc. Amer. Math. Soc., 147, 2057-2068 2019 Refereed English Research paper(scientific journal)
De Chiffre Marcus, Ozawa Narutaka, Thom Andreas De Chiffre Marcus, Ozawa Narutaka, Thom Andreas De Chiffre Marcus, Ozawa Narutaka, Thom Andreas OPERATOR ALGEBRAIC APPROACH TO INVERSE AND STABILITY THEOREMS FOR AMENABLE GROUPS OPERATOR ALGEBRAIC APPROACH TO INVERSE AND STABILITY THEOREMS FOR AMENABLE GROUPS OPERATOR ALGEBRAIC APPROACH TO INVERSE AND STABILITY THEOREMS FOR AMENABLE GROUPS MATHEMATIKA, 65, 1, 98-118 MATHEMATIKA, 65, 1, 98-118 MATHEMATIKA, 65, 1, 98-118 2019 Refereed
Ozawa Narutaka Ozawa Narutaka Ozawa Narutaka A FUNCTIONAL ANALYSIS PROOF OF GROMOV'S POLYNOMIAL GROWTH THEOREM A FUNCTIONAL ANALYSIS PROOF OF GROMOV'S POLYNOMIAL GROWTH THEOREM A FUNCTIONAL ANALYSIS PROOF OF GROMOV'S POLYNOMIAL GROWTH THEOREM ANNALES SCIENTIFIQUES DE L ECOLE NORMALE SUPERIEURE, 51, 3, 549-556 ANNALES SCIENTIFIQUES DE L ECOLE NORMALE SUPERIEURE, 51, 3, 549-556 ANNALES SCIENTIFIQUES DE L ECOLE NORMALE SUPERIEURE, 51, 3, 549-556 2018/05 Refereed
Erschler Anna, Ozawa Narutaka Erschler Anna, Ozawa Narutaka Erschler Anna, Ozawa Narutaka Finite-dimensional representations constructed from random walks Finite-dimensional representations constructed from random walks Finite-dimensional representations constructed from random walks COMMENTARII MATHEMATICI HELVETICI, 93, 3, 555-586 COMMENTARII MATHEMATICI HELVETICI, 93, 3, 555-586 COMMENTARII MATHEMATICI HELVETICI, 93, 3, 555-586 2018 Refereed
Emmanuel Breuillard, Mehrdad Kalantar, Matthew Kennedy, Narutaka Ozawa Emmanuel Breuillard, Mehrdad Kalantar, Matthew Kennedy, Narutaka Ozawa Emmanuel Breuillard, Mehrdad Kalantar, Matthew Kennedy, Narutaka Ozawa C*-simplicity and the unique trace property for discrete groups C*-simplicity and the unique trace property for discrete groups C*-simplicity and the unique trace property for discrete groups PUBLICATIONS MATHEMATIQUES DE L IHES, 126, 126, 35-71 PUBLICATIONS MATHEMATIQUES DE L IHES, 126, 126, 35-71 PUBLICATIONS MATHEMATIQUES DE L IHES, 126, 126, 35-71 2017/11 Refereed English Research paper(scientific journal)
Rui Okayasu, Narutaka Ozawa, Reiji Tomatsu Rui Okayasu, Narutaka Ozawa, Reiji Tomatsu Rui Okayasu, Narutaka Ozawa, Reiji Tomatsu Haagerup approximation property via bimodules Haagerup approximation property via bimodules Haagerup approximation property via bimodules Mathematica Scandinavica, 121, 1, 75-91 Mathematica Scandinavica, 121, 1, 75-91 Mathematica Scandinavica, 121, 1, 75-91 2017 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A remark on fullness of some group measure space von Neumann algebras A remark on fullness of some group measure space von Neumann algebras A remark on fullness of some group measure space von Neumann algebras COMPOSITIO MATHEMATICA, 152, 12, 2493-2502 COMPOSITIO MATHEMATICA, 152, 12, 2493-2502 COMPOSITIO MATHEMATICA, 152, 12, 2493-2502 2016/12 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa NONCOMMUTATIVE REAL ALGEBRAIC GEOMETRY OF KAZHDAN'S PROPERTY (T) NONCOMMUTATIVE REAL ALGEBRAIC GEOMETRY OF KAZHDAN'S PROPERTY (T) NONCOMMUTATIVE REAL ALGEBRAIC GEOMETRY OF KAZHDAN'S PROPERTY (T) JOURNAL OF THE INSTITUTE OF MATHEMATICS OF JUSSIEU, 15, 1, 85-90 JOURNAL OF THE INSTITUTE OF MATHEMATICS OF JUSSIEU, 15, 1, 85-90 JOURNAL OF THE INSTITUTE OF MATHEMATICS OF JUSSIEU, 15, 1, 85-90 2016/01 Refereed English Research paper(scientific journal)
David P. Blecher, Narutaka Ozawa David P. Blecher, Narutaka Ozawa David P. Blecher, Narutaka Ozawa REAL POSITIVITY AND APPROXIMATE IDENTITIES IN BANACH ALGEBRAS REAL POSITIVITY AND APPROXIMATE IDENTITIES IN BANACH ALGEBRAS REAL POSITIVITY AND APPROXIMATE IDENTITIES IN BANACH ALGEBRAS PACIFIC JOURNAL OF MATHEMATICS, 277, 1, 1-59 PACIFIC JOURNAL OF MATHEMATICS, 277, 1, 1-59 PACIFIC JOURNAL OF MATHEMATICS, 277, 1, 1-59 2015/09 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A remark on amenable von Neumann subalgebras in a tracial free product A remark on amenable von Neumann subalgebras in a tracial free product A remark on amenable von Neumann subalgebras in a tracial free product PROCEEDINGS OF THE JAPAN ACADEMY SERIES A-MATHEMATICAL SCIENCES, 91, 7, 104-104 PROCEEDINGS OF THE JAPAN ACADEMY SERIES A-MATHEMATICAL SCIENCES, 91, 7, 104-104 PROCEEDINGS OF THE JAPAN ACADEMY SERIES A-MATHEMATICAL SCIENCES, 91, 7, 104-104 2015/07 Refereed English Research paper(scientific journal)
Masato Mimura, Narutaka Ozawa, Hiroki Sako, Yuhei Suzuki Masato Mimura, Narutaka Ozawa, Hiroki Sako, Yuhei Suzuki Masato Mimura, Narutaka Ozawa, Hiroki Sako, Yuhei Suzuki Group approximation in cayley topology and coarse geometry, III: Geometric property (T) Group approximation in cayley topology and coarse geometry, III: Geometric property (T) Group approximation in cayley topology and coarse geometry, III: Geometric property (T) Algebraic and Geometric Topology, 15, 2, 1061-1091 Algebraic and Geometric Topology, 15, 2, 1061-1091 Algebraic and Geometric Topology, 15, 2, 1061-1091 2015/04/22 Refereed English Research paper(scientific journal)
Narutaka Ozawa, Mikael Rordam, Yasuhiko Sato Narutaka Ozawa, Mikael Rordam, Yasuhiko Sato Narutaka Ozawa, Mikael Rordam, Yasuhiko Sato Elementary amenable groups are quasidiagonal Elementary amenable groups are quasidiagonal Elementary amenable groups are quasidiagonal GEOMETRIC AND FUNCTIONAL ANALYSIS, 25, 1, 307-316 GEOMETRIC AND FUNCTIONAL ANALYSIS, 25, 1, 307-316 GEOMETRIC AND FUNCTIONAL ANALYSIS, 25, 1, 307-316 2015/02 Refereed English Research paper(scientific journal)
Gilles Godefroy, Narutaka Ozawa Gilles Godefroy, Narutaka Ozawa Gilles Godefroy, Narutaka Ozawa FREE BANACH SPACES AND THE APPROXIMATION PROPERTIES FREE BANACH SPACES AND THE APPROXIMATION PROPERTIES FREE BANACH SPACES AND THE APPROXIMATION PROPERTIES PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 142, 5, 1681-1687 PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 142, 5, 1681-1687 PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 142, 5, 1681-1687 2014/05 Refereed English Research paper(scientific journal)
Yemon CHOI, Ilias FARAHA, Narutaka OZAWA Yemon CHOI, Ilias FARAHA, Narutaka OZAWA Yemon CHOI, Ilias FARAHA, Narutaka OZAWA A nonseparable amenable operator algebra which is not isomorphic to a C*-algebra A nonseparable amenable operator algebra which is not isomorphic to a C*-algebra A nonseparable amenable operator algebra which is not isomorphic to a C*-algebra Forum Math. Sigma, 2, e2 Forum Math. Sigma, 2, e2 Forum Math. Sigma, 2, e2 2014 Refereed English Research paper(scientific journal)
William B. Johnson, Narutaka Ozawa, Gideon Schechtman William B. Johnson, Narutaka Ozawa, Gideon Schechtman William B. Johnson, Narutaka Ozawa, Gideon Schechtman A quantitative version of the commutator theorem for zero trace matrices A quantitative version of the commutator theorem for zero trace matrices A quantitative version of the commutator theorem for zero trace matrices PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 110, 48, 19251-19255 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 110, 48, 19251-19255 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 110, 48, 19251-19255 2013/11 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A remark on contractible banach algebras A remark on contractible banach algebras A remark on contractible banach algebras Kyushu Journal of Mathematics, 67, 1, 51-53 Kyushu Journal of Mathematics, 67, 1, 51-53 Kyushu Journal of Mathematics, 67, 1, 51-53 2013/07/25 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Tsirelson's problem and asymptotically commuting unitary matrices Tsirelson's problem and asymptotically commuting unitary matrices Tsirelson's problem and asymptotically commuting unitary matrices JOURNAL OF MATHEMATICAL PHYSICS, 54, 3 JOURNAL OF MATHEMATICAL PHYSICS, 54, 3 JOURNAL OF MATHEMATICAL PHYSICS, 54, 3 2013/03 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa About the Connes embedding conjecture Algebraic approaches About the Connes embedding conjecture Algebraic approaches About the Connes embedding conjecture Algebraic approaches JAPANESE JOURNAL OF MATHEMATICS, 8, 1, 147-183 JAPANESE JOURNAL OF MATHEMATICS, 8, 1, 147-183 JAPANESE JOURNAL OF MATHEMATICS, 8, 1, 147-183 2013/03 Refereed English Research paper(scientific journal)
M. Burger, N. Ozawa, A. Thom M. Burger, N. Ozawa, A. Thom M. Burger, N. Ozawa, A. Thom On Ulam stability On Ulam stability On Ulam stability ISRAEL JOURNAL OF MATHEMATICS, 193, 1, 109-129 ISRAEL JOURNAL OF MATHEMATICS, 193, 1, 109-129 ISRAEL JOURNAL OF MATHEMATICS, 193, 1, 109-129 2013/01 Refereed English Research paper(scientific journal)
N. Ozawa N. Ozawa N. Ozawa Dixmier approximation and symmetric amenability for c<sup>*</sup>- algebras Dixmier approximation and symmetric amenability for c<sup>*</sup>- algebras Dixmier approximation and symmetric amenability for c<sup>*</sup>- algebras Journal of Mathematical Sciences, the University of Tokyo, 20, 3, 349-374 Journal of Mathematical Sciences, the University of Tokyo, 20, 3, 349-374 Journal of Mathematical Sciences, the University of Tokyo, 20, 3, 349-374 2013 Refereed English
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Examples of groups which are not weakly amenable Examples of groups which are not weakly amenable Examples of groups which are not weakly amenable Kyoto Journal of Mathematics, 52, 2, 333-344 Kyoto Journal of Mathematics, 52, 2, 333-344 Kyoto Journal of Mathematics, 52, 2, 333-344 2012/06 Refereed English Research paper(scientific journal)
Nicolas Monod, Narutaka Ozawa, Andreas Thom Nicolas Monod, Narutaka Ozawa, Andreas Thom Nicolas Monod, Narutaka Ozawa, Andreas Thom IS AN IRNG SINGLY GENERATED AS AN IDEAL? IS AN IRNG SINGLY GENERATED AS AN IDEAL? IS AN IRNG SINGLY GENERATED AS AN IDEAL? INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 22, 4 INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 22, 4 INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 22, 4 2012/06 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa METRIC SPACES WITH SUBEXPONENTIAL ASYMPTOTIC DIMENSION GROWTH METRIC SPACES WITH SUBEXPONENTIAL ASYMPTOTIC DIMENSION GROWTH METRIC SPACES WITH SUBEXPONENTIAL ASYMPTOTIC DIMENSION GROWTH INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 22, 2 INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 22, 2 INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION, 22, 2 2012/03 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Quasi-homomorphism rigidity with non-commutative targets Quasi-homomorphism rigidity with non-commutative targets Quasi-homomorphism rigidity with non-commutative targets JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK, 655, 655, 89-104 JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK, 655, 655, 89-104 JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK, 655, 655, 89-104 2011/06 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Weak amenability for groups III Weak amenability for groups III Weak amenability for groups III 「作用素環ウィンター・スクール」 (Winter School on Operator Algebras), 2011 年12 月9 日( 金) 「作用素環ウィンター・スクール」 (Winter School on Operator Algebras), 2011 年12 月9 日( 金) 「作用素環ウィンター・スクール」 (Winter School on Operator Algebras), 2011 年12 月9 日( 金) 2011 Refereed English
Narutaka Ozawa, Sorin Popa Narutaka Ozawa, Sorin Popa Narutaka Ozawa, Sorin Popa On a class of II1 factors with at most one Cartan subalgebra On a class of II1 factors with at most one Cartan subalgebra On a class of II1 factors with at most one Cartan subalgebra ANNALS OF MATHEMATICS, 172, 1, 713-749 ANNALS OF MATHEMATICS, 172, 1, 713-749 ANNALS OF MATHEMATICS, 172, 1, 713-749 2010/07 Refereed English Research paper(scientific journal)
Narutaka Ozawa, Sorin Popa Narutaka Ozawa, Sorin Popa Narutaka Ozawa, Sorin Popa ON A CLASS OF II1 FACTORS WITH AT MOST ONE CARTAN SUBALGEBRA, II ON A CLASS OF II1 FACTORS WITH AT MOST ONE CARTAN SUBALGEBRA, II ON A CLASS OF II1 FACTORS WITH AT MOST ONE CARTAN SUBALGEBRA, II AMERICAN JOURNAL OF MATHEMATICS, 132, 3, 841-866 AMERICAN JOURNAL OF MATHEMATICS, 132, 3, 841-866 AMERICAN JOURNAL OF MATHEMATICS, 132, 3, 841-866 2010/06 Refereed English Research paper(scientific journal)
Nicolas Monod, Narutaka Ozawa Nicolas Monod, Narutaka Ozawa Nicolas Monod, Narutaka Ozawa The Dixmier problem, lamplighters and Burnside groups The Dixmier problem, lamplighters and Burnside groups The Dixmier problem, lamplighters and Burnside groups JOURNAL OF FUNCTIONAL ANALYSIS, 258, 1, 255-259 JOURNAL OF FUNCTIONAL ANALYSIS, 258, 1, 255-259 JOURNAL OF FUNCTIONAL ANALYSIS, 258, 1, 255-259 2010/01 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa An example of a solid von Neumann algebra An example of a solid von Neumann algebra An example of a solid von Neumann algebra HOKKAIDO MATHEMATICAL JOURNAL, 38, 3, 557-561 HOKKAIDO MATHEMATICAL JOURNAL, 38, 3, 557-561 HOKKAIDO MATHEMATICAL JOURNAL, 38, 3, 557-561 2009/08 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Weak amenability of hyperbolic groups Weak amenability of hyperbolic groups Weak amenability of hyperbolic groups GROUPS GEOMETRY AND DYNAMICS, 2, 2, 271-280 GROUPS GEOMETRY AND DYNAMICS, 2, 2, 271-280 GROUPS GEOMETRY AND DYNAMICS, 2, 2, 271-280 2008 Refereed English Research paper(scientific journal)
N. P. Brown, N. Ozawa N. P. Brown, N. Ozawa N. P. Brown, N. Ozawa C*-algebras and finite-dimensional approximations C*-algebras and finite-dimensional approximations C*-algebras and finite-dimensional approximations Graduate Studies in Mathematics, 88. American Mathematical Society, 2008, 509 pp Graduate Studies in Mathematics, 88. American Mathematical Society, 2008, 509 pp Graduate Studies in Mathematics, 88. American Mathematical Society, 2008, 509 pp 2008 Refereed English
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Weakly exact von Neumann algebras Weakly exact von Neumann algebras Weakly exact von Neumann algebras JOURNAL OF THE MATHEMATICAL SOCIETY OF JAPAN, 59, 4, 985-991 JOURNAL OF THE MATHEMATICAL SOCIETY OF JAPAN, 59, 4, 985-991 JOURNAL OF THE MATHEMATICAL SOCIETY OF JAPAN, 59, 4, 985-991 2007/10 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Boundaries of reduced free group C*-algebras Boundaries of reduced free group C*-algebras Boundaries of reduced free group C*-algebras BULLETIN OF THE LONDON MATHEMATICAL SOCIETY, 39, 1, 35-38 BULLETIN OF THE LONDON MATHEMATICAL SOCIETY, 39, 1, 35-38 BULLETIN OF THE LONDON MATHEMATICAL SOCIETY, 39, 1, 35-38 2007/02 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Boundary amenability of relatively hyperbolic groups Boundary amenability of relatively hyperbolic groups Boundary amenability of relatively hyperbolic groups TOPOLOGY AND ITS APPLICATIONS, 153, 14, 2624-2630 TOPOLOGY AND ITS APPLICATIONS, 153, 14, 2624-2630 TOPOLOGY AND ITS APPLICATIONS, 153, 14, 2624-2630 2006/08 Refereed English Research paper(scientific journal)
N. Ozawa N. Ozawa N. Ozawa Amenable actions and applications Amenable actions and applications Amenable actions and applications International Congress of Mathematicians, ICM 2006, 2, 1563-1580 International Congress of Mathematicians, ICM 2006, 2, 1563-1580 International Congress of Mathematicians, ICM 2006, 2, 1563-1580 2006 Refereed English
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A Kurosh-type theorem for type II1 factors A Kurosh-type theorem for type II1 factors A Kurosh-type theorem for type II1 factors International Mathematics Research Notices, 2006, 1-21 International Mathematics Research Notices, 2006, 1-21 International Mathematics Research Notices, 2006, 1-21 2006 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A Kurosh-type theorem for type II1 factors A Kurosh-type theorem for type II1 factors A Kurosh-type theorem for type II1 factors INTERNATIONAL MATHEMATICS RESEARCH NOTICES INTERNATIONAL MATHEMATICS RESEARCH NOTICES INTERNATIONAL MATHEMATICS RESEARCH NOTICES 2006 Refereed English Research paper(scientific journal)
N Ozawa, MA Rieffel N Ozawa, MA Rieffel N Ozawa, MA Rieffel Hyperbolic group C*-algebras and free-product C*-algebras as compact quantum metric spaces Hyperbolic group C*-algebras and free-product C*-algebras as compact quantum metric spaces Hyperbolic group C*-algebras and free-product C*-algebras as compact quantum metric spaces CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 57, 5, 1056-1079 CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 57, 5, 1056-1079 CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 57, 5, 1056-1079 2005/10 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Weakly Exact von Neumann Algebras Weakly Exact von Neumann Algebras Weakly Exact von Neumann Algebras 2004/11/22 Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa About the QWEP conjecture About the QWEP conjecture About the QWEP conjecture International Journal of Mathematics, 15, 5, 501-530 International Journal of Mathematics, 15, 5, 501-530 International Journal of Mathematics, 15, 5, 501-530 2004/07 Refereed English
N Ozawa, S Popa N Ozawa, S Popa N Ozawa, S Popa Some prime factorization results for type II1 factors Some prime factorization results for type II1 factors Some prime factorization results for type II1 factors INVENTIONES MATHEMATICAE, 156, 2, 223-234 INVENTIONES MATHEMATICAE, 156, 2, 223-234 INVENTIONES MATHEMATICAE, 156, 2, 223-234 2004/05 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A Kurosh type theorem for type II_1 factors A Kurosh type theorem for type II_1 factors A Kurosh type theorem for type II_1 factors Int. Math. Res. Not., Volume 2006, Article ID97560 Int. Math. Res. Not., Volume 2006, Article ID97560 Int. Math. Res. Not., Volume 2006, Article ID97560 2004/01/13 Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa A note on non-amenability of B(\ell_p) for p=1,2 A note on non-amenability of B(\ell_p) for p=1,2 A note on non-amenability of B(\ell_p) for p=1,2 2004/01/13 Research paper(scientific journal)
N. Ozawa N. Ozawa N. Ozawa A note on non-amenability of script B sign(ℓ<sub>p</sub>) for p = 1, 2 A note on non-amenability of script B sign(ℓ<sub>p</sub>) for p = 1, 2 A note on non-amenability of script B sign(ℓ<sub>p</sub>) for p = 1, 2 International Journal of Mathematics, 15, 6, 557-565 International Journal of Mathematics, 15, 6, 557-565 International Journal of Mathematics, 15, 6, 557-565 2004 Refereed English
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Solid von Neumann algebras Solid von Neumann algebras Solid von Neumann algebras Acta Mathematica, 192, 1, 111-117 Acta Mathematica, 192, 1, 111-117 Acta Mathematica, 192, 1, 111-117 2004 Refereed English
N Ozawa N Ozawa N Ozawa There is no separable universal II1-factor There is no separable universal II1-factor There is no separable universal II1-factor PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 132, 2, 487-490 PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 132, 2, 487-490 PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 132, 2, 487-490 2004 English Research paper(scientific journal)
A Kishimoto, N Ozawa, S Sakai A Kishimoto, N Ozawa, S Sakai A Kishimoto, N Ozawa, S Sakai Homogeneity of the pure state space of a separable C*-algebra Homogeneity of the pure state space of a separable C*-algebra Homogeneity of the pure state space of a separable C*-algebra CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 46, 3, 365-372 CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 46, 3, 365-372 CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 46, 3, 365-372 2003/09 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa About the QWEP conjecture About the QWEP conjecture About the QWEP conjecture 2003/06/04 Research paper(scientific journal)
M Junge, N Ozawa, ZJ Ruan M Junge, N Ozawa, ZJ Ruan M Junge, N Ozawa, ZJ Ruan On OL infinity structures of nuclear C*-algebras On OL infinity structures of nuclear C*-algebras On OL infinity structures of nuclear C*-algebras MATHEMATISCHE ANNALEN, 325, 3, 449-483 MATHEMATISCHE ANNALEN, 325, 3, 449-483 MATHEMATISCHE ANNALEN, 325, 3, 449-483 2003/03 Refereed English Research paper(scientific journal)
N Ozawa N Ozawa N Ozawa An application of expanders to B(l(2))circle times B(l2) An application of expanders to B(l(2))circle times B(l2) An application of expanders to B(l(2))circle times B(l2) JOURNAL OF FUNCTIONAL ANALYSIS, 198, 2, 499-510 JOURNAL OF FUNCTIONAL ANALYSIS, 198, 2, 499-510 JOURNAL OF FUNCTIONAL ANALYSIS, 198, 2, 499-510 2003/03 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Solid von Neumann Algebras Solid von Neumann Algebras Solid von Neumann Algebras 2003/02/11 Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Homotopy invariance of AF-embeddability Homotopy invariance of AF-embeddability Homotopy invariance of AF-embeddability Geometric and Functional Analysis, 13, 1, 216-222 Geometric and Functional Analysis, 13, 1, 216-222 Geometric and Functional Analysis, 13, 1, 216-222 2003 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa There is no separable universal II_1-factor There is no separable universal II_1-factor There is no separable universal II_1-factor 2002/10/27 Research paper(scientific journal)
PW Ng, N Ozawa PW Ng, N Ozawa PW Ng, N Ozawa A characterization of completely 1-complemented subspaces of noncommutative L-1-spaces A characterization of completely 1-complemented subspaces of noncommutative L-1-spaces A characterization of completely 1-complemented subspaces of noncommutative L-1-spaces PACIFIC JOURNAL OF MATHEMATICS, 205, 1, 171-195 PACIFIC JOURNAL OF MATHEMATICS, 205, 1, 171-195 PACIFIC JOURNAL OF MATHEMATICS, 205, 1, 171-195 2002/07 Refereed English Research paper(scientific journal)
PW Ng, N Ozawa PW Ng, N Ozawa PW Ng, N Ozawa A characterization of completely 1-complemented subspaces of noncommutative L-1-spaces A characterization of completely 1-complemented subspaces of noncommutative L-1-spaces A characterization of completely 1-complemented subspaces of noncommutative L-1-spaces PACIFIC JOURNAL OF MATHEMATICS, 205, 1, 171-195 PACIFIC JOURNAL OF MATHEMATICS, 205, 1, 171-195 PACIFIC JOURNAL OF MATHEMATICS, 205, 1, 171-195 2002/07 English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Homotopy invariance of AF-embeddability Homotopy invariance of AF-embeddability Homotopy invariance of AF-embeddability 2002/01/21 Research paper(scientific journal)
EG Effros, N Ozawa, ZJ Ruan EG Effros, N Ozawa, ZJ Ruan EG Effros, N Ozawa, ZJ Ruan On injectivity and nuclearity for operator spaces On injectivity and nuclearity for operator spaces On injectivity and nuclearity for operator spaces DUKE MATHEMATICAL JOURNAL, 110, 3, 489-521 DUKE MATHEMATICAL JOURNAL, 110, 3, 489-521 DUKE MATHEMATICAL JOURNAL, 110, 3, 489-521 2001/12 Refereed English Research paper(scientific journal)
N. Ozawa Narutaka Ozawa N. Ozawa A non-extendable bounded linear map between C-algebras A non-extendable bounded linear map between C-algebras A non-extendable bounded linear map between C-algebras Proceedings of the Edinburgh Mathematical Society, 44, 2, 241-248 Proceedings of the Edinburgh Mathematical Society, 44, 2, 241-248 Proceedings of the Edinburgh Mathematical Society, 44, 2, 241-248 2001/12/01 English
N Ozawa N Ozawa N Ozawa Almost completely isometric embeddings between preduals of von Neumann algebras Almost completely isometric embeddings between preduals of von Neumann algebras Almost completely isometric embeddings between preduals of von Neumann algebras JOURNAL OF FUNCTIONAL ANALYSIS, 186, 2, 329-341 JOURNAL OF FUNCTIONAL ANALYSIS, 186, 2, 329-341 JOURNAL OF FUNCTIONAL ANALYSIS, 186, 2, 329-341 2001/11 Refereed English Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa An Application of Expanders to $B(H)+\otimes+B(H)$ An Application of Expanders to $B(H)+\otimes+B(H)$ An Application of Expanders to $B(H)+\otimes+B(H)$ 2001/10/15 Research paper(scientific journal)
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa On the set of finite-dimensional subspaces of preduals of von Neumann algebras | Sur l'ensemble des sous-espaces de dimension finie des préduaux d'algèbres de von Neumann On the set of finite-dimensional subspaces of preduals of von Neumann algebras | Sur l'ensemble des sous-espaces de dimension finie des préduaux d'algèbres de von Neumann On the set of finite-dimensional subspaces of preduals of von Neumann algebras | Sur l'ensemble des sous-espaces de dimension finie des préduaux d'algèbres de von Neumann Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 331, 309-312 Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 331, 309-312 Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 331, 309-312 2000/08/15
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Amenable actions and exactness for discrete groups Amenable actions and exactness for discrete groups Amenable actions and exactness for discrete groups Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 330, 8, 691-695 Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 330, 8, 691-695 Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 330, 8, 691-695 2000/04/15 Refereed English Research paper(scientific journal)
Narutaka Ozawa, Narutaka Ozawa Narutaka Ozawa, Narutaka Ozawa Narutaka Ozawa, Narutaka Ozawa Amenable actions and exactness for discrete groups | Actions moyennables pour les groupes discrets exacts Amenable actions and exactness for discrete groups | Actions moyennables pour les groupes discrets exacts Amenable actions and exactness for discrete groups | Actions moyennables pour les groupes discrets exacts Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 330, 691-695 Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 330, 691-695 Comptes Rendus de l'Academie des Sciences - Series I: Mathematics, 330, 691-695 2000/04/15
N. Ozawa N. Ozawa N. Ozawa On the set of finite-dimensional subspaces of preduals of von Neumann algebras On the set of finite-dimensional subspaces of preduals of von Neumann algebras On the set of finite-dimensional subspaces of preduals of von Neumann algebras Comptes Rendus de l\\'Academie des Sciences - Series I: Mathematics, 331, 4, 309-312 Comptes Rendus de l\\'Academie des Sciences - Series I: Mathematics, 331, 4, 309-312 Comptes Rendus de l\\'Academie des Sciences - Series I: Mathematics, 331, 4, 309-312 2000 Refereed English
NARUTAKA OZAWA, GILLES PISIER NARUTAKA OZAWA, GILLES PISIER NARUTAKA OZAWA, GILLES PISIER A CONTINUUM OF C*-NORMS ON {\mathbb B}(H) ⊗ {\mathbb B}(H) AND RELATED TENSOR PRODUCTS A CONTINUUM OF C*-NORMS ON {\mathbb B}(H) ⊗ {\mathbb B}(H) AND RELATED TENSOR PRODUCTS A CONTINUUM OF C*-NORMS ON {\mathbb B}(H) ⊗ {\mathbb B}(H) AND RELATED TENSOR PRODUCTS Glasgow Mathematical Journal Glasgow Mathematical Journal Glasgow Mathematical Journal Refereed Research paper(scientific journal)

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Title language:
Misc
Author Author(Japanese) Author(English) Title Title(Japanese) Title(English) Bibliography Bibliography(Japanese) Bibliography(English) Publication date Refereed paper Language Publishing type
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Survey on weak amenability for groups Survey on weak amenability for groups Survey on weak amenability for groups Conference on von Neumann Algebras and Related Topics Conference on von Neumann Algebras and Related Topics Conference on von Neumann Algebras and Related Topics 2012 Refereed English
Narutaka Ozawa Narutaka Ozawa Narutaka Ozawa Survey on weak amenability Survey on weak amenability Survey on weak amenability 国際研究集会「C ゛環および関連する話題」(Conference on C*-Algebras and Related Topics)、2011 年9 月8 日( 木) 国際研究集会「C ゛環および関連する話題」(Conference on C*-Algebras and Related Topics)、2011 年9 月8 日( 木) 国際研究集会「C ゛環および関連する話題」(Conference on C*-Algebras and Related Topics)、2011 年9 月8 日( 木) 2011 Refereed English
Title language:
Conference Activities & Talks
Title Title(Japanese) Title(English) Conference Conference(Japanese) Conference(English) Promotor Promotor(Japanese) Promotor(English) Date Language Assortment
Full factors and co-amenable inclusions[Invited] Full factors and co-amenable inclusions [Invited] Full factors and co-amenable inclusions [Invited] C*-Algebras C*-Algebras C*-Algebras 2019/08 English Oral presentation(invited, special)
Kazhdan's property (T) and semidefinite programming[Invited] Kazhdan's property (T) and semidefinite programming [Invited] Kazhdan's property (T) and semidefinite programming [Invited] Conference: SYM 10 Years Old Conference: SYM 10 Years Old Conference: SYM 10 Years Old 2019/06 English Oral presentation(invited, special)
Finite-dimensional representations constructed from random walks[Invited] Finite-dimensional representations constructed from random walks [Invited] Finite-dimensional representations constructed from random walks [Invited] 2018 Spring Probability Workshop 2018 Spring Probability Workshop 2018 Spring Probability Workshop 2018/06 English Oral presentation(invited, special)
Aut(F_5) has Kazhdan's property (T)[Invited] Aut(F_5) has Kazhdan's property (T) [Invited] Aut(F_5) has Kazhdan's property (T) [Invited] Approximation Properties in Operator Algebras and Ergodic Theory Approximation Properties in Operator Algebras and Ergodic Theory Approximation Properties in Operator Algebras and Ergodic Theory 2018/04 English Oral presentation(invited, special)
Minicourse on Connes's Embedding Problem and its equivalent[Invited] Minicourse on Connes's Embedding Problem and its equivalent [Invited] Minicourse on Connes's Embedding Problem and its equivalent [Invited] Analysis in Quantum Information Theory Analysis in Quantum Information Theory Analysis in Quantum Information Theory 2017/09 English Public discourse, seminar, tutorial, course, lecture and others
A remark on fullness of some group measure space von Neumann algebras A remark on fullness of some group measure space von Neumann algebras A remark on fullness of some group measure space von Neumann algebras Workshop Classification and dynamical systems II: Von Neumann Algebras Workshop Classification and dynamical systems II: Von Neumann Algebras Workshop Classification and dynamical systems II: Von Neumann Algebras 2016/04 English Oral presentation(invited, special)
A functional analysis proof of Gromov's polynomial growth theorem[Invited] A functional analysis proof of Gromov's polynomial growth theorem [Invited] A functional analysis proof of Gromov's polynomial growth theorem [Invited] Nordic Congress of Mathematics Nordic Congress of Mathematics Nordic Congress of Mathematics 2016/03 English Oral presentation(invited, special)
A continuum of C*-norms on B(H) \otimes B(H) and related tensor products[Invited] A continuum of C*-norms on B(H) \otimes B(H) and related tensor products [Invited] A continuum of C*-norms on B(H) \otimes B(H) and related tensor products [Invited] Workshop Classification and set theory Workshop Classification and set theory Workshop Classification and set theory 2016/03 English Oral presentation(invited, special)
The Furstenberg boundary and C*-simplicity[Invited] The Furstenberg boundary and C*-simplicity [Invited] The Furstenberg boundary and C*-simplicity [Invited] NCGOA, Vanderbilt University, NCGOA, Vanderbilt University, NCGOA, Vanderbilt University, 2015/05
Noncommutative real algebraic geometry of Kazhdan's property (T)[Invited] Noncommutative real algebraic geometry of Kazhdan's property (T) [Invited] Noncommutative real algebraic geometry of Kazhdan's property (T) [Invited] Arithmetic and allied subjects on the banks of the Neva Arithmetic and allied subjects on the banks of the Neva Arithmetic and allied subjects on the banks of the Neva 2014/11 English
Elementary amenable groups are quasidiagonal[Invited] Elementary amenable groups are quasidiagonal [Invited] Elementary amenable groups are quasidiagonal [Invited] Operator Algebras and Applications (ICM Satellite Conference), Cheongpung Operator Algebras and Applications (ICM Satellite Conference), Cheongpung Operator Algebras and Applications (ICM Satellite Conference), Cheongpung 2014/08 English
Approximation Properties for Group C*-Algebras[Invited] Approximation Properties for Group C*-Algebras [Invited] Approximation Properties for Group C*-Algebras [Invited] Banach and Operator Algebras over Groups, Fields Institute Banach and Operator Algebras over Groups, Fields Institute Banach and Operator Algebras over Groups, Fields Institute 2014/02 English

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Title language:
Books etc
Author Author(Japanese) Author(English) Title Title(Japanese) Title(English) Publisher Publisher(Japanese) Publisher(English) Publication date Language Type
Nathanial P. Brown, Narutaka Ozawa Nathanial P. Brown, Narutaka Ozawa Nathanial P. Brown, Narutaka Ozawa $\textrm{C}^*$ -Algebras and Finite-Dimensional Approximations (Graduate Studies in Mathematics) $\textrm{C}^*$ -Algebras and Finite-Dimensional Approximations (Graduate Studies in Mathematics) $\textrm{C}^*$ -Algebras and Finite-Dimensional Approximations (Graduate Studies in Mathematics) American Mathematical Society American Mathematical Society American Mathematical Society 2008/03/12
Title language:
Awards
Title(Japanese) Title(English) Organization name(Japanese) Organization name(English) Date

External funds: competitive funds and Grants-in-Aid for Scientific Research (Kakenhi)
Type Position Title(Japanese) Title(English) Period

Teaching subject(s)
Name(Japanese) Name(English) Term Department Period

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Faculty management (title, position)
Title Period