OHWADA Tomoyoshi 大和田智義

… Alternative Names

大和田智義オオワダトモヨシ

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Researcher Number	50321386
Other IDs
External Links
Affiliation (Current)	2025: 静岡大学, 教育学部, 教授
Affiliation (based on the past Project Information) *help	2012: 静岡大学, 教育学部, 教授 2010 – 2011: 静岡大学, 教育学部, 准教授 2007 – 2008: Shizuoka University, 教育学部, 准教授 2003 – 2006: 鶴岡工業高等専門学校, 機械工学科, 助教授
Review Section/Research Field	Principal Investigator Basic analysis
Keywords	Principal Investigator semigroup / von Neumann algebra / invariant subspace / maximality / analytic subalgebra / crossed product / analytic crossed products(解析的接合積) / Hilbert spaces(ヒルベルト空間) / invariant subspace(不変部分空間) / banach space … More / inequality / Banach space / factorization theorem / von Neumannm algebra / semi group / semigroups / analytic subalgebras / analytic crossed products / von Neumann algebras / crossed products Less

On many approaches of the invariantsubspace problem in Hilbert spacesPrincipal Investigator
- Principal Investigator
  
  OHWADA Tomoyoshi
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shizuoka University
The structure of invariant subspaces in Hilbert spaces and related topicsPrincipal Investigator
- Principal Investigator
  
  OHWADA Tomoyoshi
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shizuoka University
  Tsuruoka National College of Technology
ヒルベルト空間における不変部分空間の問題とその周辺Principal Investigator
- Principal Investigator
  
  大和田智義
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Basic analysis
- Research Institution
  Tsuruoka National College of Technology

All 2012 2011 2010 2008 2007 2006 2005 2002 2001 Other

All Journal Article Presentation

[Journal Article] Kolmogorov's factorization theorem for von Neumann algebras2012
- Author(s)
  T. Ohwada
- Journal Title
  
  J. Math. Anal. Appl.
  
  Volume: 401 Pages: 289-292
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Characterization of the intermediate values of the triangle inequality2012
- Author(s)
  K. MINENO, Y. NAKAMURA and T. OHWADA
- Volume
  Vol. 15
- Pages
  1019-1035
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Kolmogorov's factorization theorem for von Neumann algebras2012
- Author(s)
  K. Nakade, T. OHWADAand K.-S. SAITO
- Journal Title
  
  J. Math. Anal. Appl
  
  Volume: Vol. 401 Pages: 289-292
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] On λ-commuting operators2011
- Author(s)
  L.Zhang, T.Ohwada, M.Cho
- Journal Title
  
  International Mathematical forum
  
  Volume: 6 Pages: 1685-1690
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] On extension of the sharp triangle inequalities2011
- Author(s)
  T.Ohwada, K.Mineno, Y.Nakamura
- Journal Title
  
  Banach and Function Space III
  
  Volume: 3 Pages: 441-451
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Certain invariant subspace structure of L^2(T^2)II2008
- Author(s)
  A. Hasegawa, G. Ji, T. Ohwada, K. -S. Saito
- Journal Title
  
  Hokkaido Mathemat ical Journal 37
  
  Pages: 493-505
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Certain invariant subspace stru cture of L^2(T^2)II2008
- Author(s)
  Hasegawa, G. Ji, T. Ohwada and K.-S. Saito
- Journal Title
  
  Hokkaido Mathemat ical Journal 37
  
  Pages: 493-505
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] The adjoint of Hankel operators associated with analytic crossed products2007
- Author(s)
  T. Ohwada
- Journal Title
  
  Acta Mathematica Hungarica 117
  
  Pages: 27-34
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  T.Ohwada, G.Ji, A.Hasegawa, K-S Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 315
  
  Pages: 216-224
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  T.Ohwada, G.Ji, A.Hasegawa, K-S.Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 315
  
  Pages: 216-224
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Commutants of certain analytic operator algebras2006
- Author(s)
  G.Ji, T.Ohwada, K-S.Saito
- Journal Title
  
  Proc. Amer. Math. Soc. 134
  
  Pages: 2975-2982
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Sarason's interpolation theorem for analytic crossed products2006
- Author(s)
  T. Ohwada
- Journal Title
  
  Functional Analysis and its Applications 40
  
  Pages: 151-154
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Commutants of certain analytic operator algebras2006
- Author(s)
  G. Ji, T. Ohwada and K.-S. Saito
- Journal Title
  
  Proceedings of the American Mathematical Society 134
  
  Pages: 2975-2982
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] A note on maximality of analytic crossed products2006
- Author(s)
  T. Ohwada, G. Ji, A. Hasegawa and K.-S. Saito
- Journal Title
  
  Journal of Mathematical Analysis and Applications 315
  
  Pages: 216-224
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] Sarason's interpolation theorem for analytic crossed products2006
- Author(s)
  T.Ohwada
- Journal Title
  
  Functional Analysis and Its Applications 40
  
  Pages: 151-154
- Data Source
  KAKENHI-PROJECT-18540199
[Journal Article] On some subalgebras of von Neumann algebras with analyticity2005
- Author(s)
  T.Ohwada
- Journal Title
  
  Journal of Functional analysis 222
  
  Pages: 274-291
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] 半群とL^∞(G)の部分環の対応とその応用2005
- Author(s)
  T.Ohwada
- Journal Title
  
  数理解析研究所講究録 1445
  
  Pages: 145-151
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] Factorization in analytic crossed products2002
- Author(s)
  T.Ohwada, K-S Saito
- Journal Title
  
  Journal of the Mathematical Society of Japan 54
  
  Pages: 21-33
- NAID
  10007767453
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] Invariant subspaces and representations of certain von Neumann algebras2001
- Author(s)
  T.Ohwada, G.Ji, K-S Saito
- Journal Title
  
  Proceedings of the American Mathematical Society 129
  
  Pages: 3501-3510
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] Sarason's interpolation theorem for analytic crossed products
- Author(s)
  T.Ohwada
- Journal Title
  
  Functional analysis and its applications 印刷中
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] Characterization of the intermediate values of the triangle inequality
- Author(s)
  K.Mineno, Y.Nakamura, T.Ohwada
- Journal Title
  
  Math.Inequal.Appl.
  
  Volume: (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Journal Article] Commutants of certain analytic operator algebras
- Author(s)
  G.Ji, T.Ohwada, K-S Saito
- Journal Title
  
  Proceedings of the American Mathematical Society 印刷中
- Data Source
  KAKENHI-PROJECT-15740097
[Journal Article] On a continuous mapping and sharp triangle inequalities
- Author(s)
  T.Ohwada
- Journal Title
  
  Inequalities and Applications 2011
  
  Volume: (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] On the reverses of the triangle inequality in inner product spaces2012
- Author(s)
  T.Ohwada
- Organizer
  Colloquium of the department of Math., Universidad Complutense de Madrid
- Place of Presentation
  Complutense University, Madrid, Spain
- Year and Date
  2012-02-12
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] On a continuous mapping constructed by the triangle inequalities and its applications2011
- Author(s)
  大和田智義
- Organizer
  バナッハ空間論の研究とその周辺
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] On reverse of the triangle inequality in normed linear spaces2011
- Author(s)
  T. OHWADA
- Organizer
  The 7-th International conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University (韓国)
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] On reverses of the triangle inequality in normed linear spaces2011
- Author(s)
  T.Ohwada
- Organizer
  The 7-th International conference on Nonlinear Analysis and Convex Analysis
- Place of Presentation
  Pukyong National University, Busan, Korea
- Year and Date
  2011-08-03
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] On a continuous mapping and sharp triangle inequalities2010
- Author(s)
  大和田智義
- Organizer
  The Conference on Inequalities and Applications '10
- Place of Presentation
  Hiajduszoboszlo, Hungary
- Data Source
  KAKENHI-PROJECT-22540184
[Presentation] 非可換Hardy空間に対するHankel作用素について2007
- Author(s)
  T. Ohwada
- Organizer
  バナッハ空間、関数空間及び不等式の研究とその応用
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2007-06-07
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] 非可換Hardy空間に対するHankel作用素について2007
- Author(s)
  大和田智義
- Organizer
  「バナッハ空間、関数空間及び不等式の研究とその応用」研究集会
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2007-06-07
- Data Source
  KAKENHI-PROJECT-18540199
[Presentation] On the maximal subalgebras of L∞(G)2006
- Author(s)
  T. Ohwada
- Organizer
  バナッハ空間及び関数空間の構造の研究
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2006-06-07
- Data Source
  KAKENHI-PROJECT-18540199

1. SAITO Kichisuke (30018949)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. WATATANI Yasuo (00175077)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. 斉藤吉助

# of Collaborated Projects: 0 results

# of Collaborated Products: 7 results

OHWADA Tomoyoshi 大和田 智義

大和田 智義 オオワダ トモヨシ

Research Projects

Research Products

Co-Researchers

On many approaches of the invariantsubspace problem in Hilbert spacesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

The structure of invariant subspaces in Hilbert spaces and related topicsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

ヒルベルト空間における不変部分空間の問題とその周辺Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Kolmogorov's factorization theorem for von Neumann algebras2012

Author(s)

Journal Title

Data Source

[Journal Article] Characterization of the intermediate values of the triangle inequality2012

Author(s)

Volume

Pages

Data Source

[Journal Article] Kolmogorov's factorization theorem for von Neumann algebras2012

Author(s)

Journal Title

Data Source

[Journal Article] On λ-commuting operators2011

Author(s)

Journal Title

Data Source

[Journal Article] On extension of the sharp triangle inequalities2011

Author(s)

Journal Title

Data Source

[Journal Article] Certain invariant subspace structure of L^2(T^2)II2008

Author(s)

Journal Title

Data Source

[Journal Article] Certain invariant subspace stru cture of L^2(T^2)II2008

Author(s)

Journal Title

Data Source

[Journal Article] The adjoint of Hankel operators associated with analytic crossed products2007

Author(s)

Journal Title

Data Source

[Journal Article] A note on maximality of analytic crossed products2006

Author(s)

Journal Title

Data Source

[Journal Article] A note on maximality of analytic crossed products2006

Author(s)

Journal Title

Data Source

[Journal Article] Commutants of certain analytic operator algebras2006

Author(s)

Journal Title

Data Source

[Journal Article] Sarason's interpolation theorem for analytic crossed products2006

Author(s)

Journal Title

Data Source

[Journal Article] Commutants of certain analytic operator algebras2006

Author(s)

Journal Title

Data Source

[Journal Article] A note on maximality of analytic crossed products2006

Author(s)

Journal Title

Data Source

OHWADA Tomoyoshi 大和田智義

大和田智義オオワダトモヨシ