Uchiyama Atsushi 内山敦

… Alternative Names

内山敦ウチヤマアツシ

UCHIYAMA Atsushi 内山敦

Less

Researcher Number	00353227
Other IDs
Affiliation (Current)	2025: 東北医科薬科大学, 教養教育センター, 教授
Affiliation (based on the past Project Information) *help	2019 – 2022: 東北医科薬科大学, 教養教育センター, 教授 2017 – 2018: 山形大学, 理学部, 准教授 2008 – 2010: Yamagata University, 理学部, 准教授 2003 – 2006: 仙台電波工業高等専門学校, 講師
Review Section/Research Field	Principal Investigator Basic analysis Except Principal Investigator Basic analysis
Keywords	Principal Investigator (p, k)-quasihyponormal / リース射影 / ワイルの定理 / フグレデ・パットナムの定理 / Weyl' s theorem / Riesz idempoten / quasi-class (A, k) / ノルム不等式 / スペクトラム / ハイポノーマル … More / 作用素不等式 / 正規作用素 / クラスA作用素 / normaloid / SVEP / 非正規作用素 / 作用素論 / w-hyponormal / class A(s,t) / (p,k)-quasihyponormal / Putnam inequality / paranormal / algebraically(p, k)-quasihyponormal / class A(s, t) / class A / p-quasihyponormal / p-hyponormal / クラスY / クラスA(s, t) / パラノーマル … More Except Principal Investigator 作用素不等式 / p-hyponormal operator / log-hyponormal operator / 関数解析学 / 調和解析 / 実解析 / 端数積分作用素 / ソボレフ空間 / ルベーグ空間 / 多重線形作用素 / 分数べき積分作用素 / Lp空間 / 重み付き空間 / 重み付きLp空間 / バナッハ環 / フーリエールベーグ空間 / ヒルベルト変換 / 双線形作用素 / 重み付き関数空間 / 正規作用素 / ヒルベルト空間 / 作用関数 / モジュレーション空間 / 重み関数 / 分数冪積分作用素 / モレー空間 / Weyl' s theorem / Fuglede-Putnam theore / class A(s, t) operator / (p, k) -quasihyponormal operator / class A(s,t)作用素 / class A作用素 / log-hyponormal作用素 / class A operator / p-quasihyponormal operator / Weyl's theorem / Fuglede-Putnam theorem / class A(s,t) operator / (p,k)-quasihyponormal operator Less

Operators on some function spaces in harmonic analysis
- Principal Investigator
  
  Sato Enji
- Project Period (FY)
  2017 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamagata University
Operator Inequalities and Spectral Analysis of Non-normal operatorsPrincipal Investigator
- Principal Investigator
  
  UCHIYAMA Atsushi
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamagata University
作用素不等式と非正規作用素の研究Principal Investigator
- Principal Investigator
  
  内山敦
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Basic analysis
- Research Institution
  Sendai National College of Technology
Research of operator inequalities and log-hyponormal operators
- Principal Investigator
  
  TANAHASHI Kotaro
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Tohoku Pharmaceutical University

All 2020 2018 2010 2009 2008 2006 2005 2004 2003 Other

All Journal Article Presentation

[Journal Article] Fulgled-Putnam theorem and quasisimilarity of class p-WA(s,t) operators2020
- Author(s)
  M.Cho,T.Prasad,K.Tanahashi,A.Uchiyama
- Journal Title
  
  Operators and Matrices
  
  Volume: 13 Pages: 293-299
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05289
[Journal Article] An indefinite range inclusion theorem for triplets of bounded lineara operators on a Hilbert space2020
- Author(s)
  M.Seto and A.Uchiyama
- Journal Title
  
  Operators and Matrices
  
  Volume: 14 Pages: 437-446
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05289
[Journal Article] Weyl's theorem and Punam's inequality for p-WA(s,t) operators2018
- Author(s)
  M.H.Rashid,M.Cho,T.Prasad,K.Tanahashi,A.Uchiyama
- Journal Title
  
  Acta Sci.Math (Szeged)
  
  Volume: 84 Pages: 573-589
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K05289
[Journal Article] An extension of the Fuglede-Putnam's theorem to class A operators2010
- Author(s)
  S.Mecheri, A.Uchiyama
- Journal Title
  
  Math.Ineq.Appl.
  
  Pages: 57-61
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Bishop's property (β) for paranormal operators2009
- Author(s)
  A.Uchiyama, K.Tanahashi
- Journal Title
  
  Operator and Matrices
  
  Pages: 517-524
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] On extension of some Fuglede-Putnam type theorems involving (p, k)-quasihyponormal, Spectral, and dominant operators2009
- Author(s)
  S.M.Patel, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Math.Nachr.
  
  Pages: 1022-1032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Bishop's property(β)for paranormal operators2009
- Author(s)
  Uchiyama A., Tanahashi K.
- Journal Title
  
  Operators and Matrices 3
  
  Pages: 517-524
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] On extensions of some Fuglede-Putnam type theorems involving(p,k)-quasihyponormal, spectral, and dominant operators2009
- Author(s)
  Patel S.M., Tanahashi K., Uchiyama A.
- Journal Title
  
  Math.Nachr 282
  
  Pages: 1022-1032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Weyl type theorems for(p,k)-quasihyponormal operators2009
- Author(s)
  Mecheri S., Tanahashi K., Uchiyama A.
- Journal Title
  
  Sci.Math.Jpn. 69
  
  Pages: 411-417
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Weyl type theorem for (p, k)-quasihyponormal operators2009
- Author(s)
  S.Mecheri, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Sci.Math.Jpn.
  
  Pages: 225-231
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Weyl type theorem for (p, k)-quasihyponortaal operators2009
- Author(s)
  S. Mecheri, K. Tana hashi and A. Uchiyama
- Journal Title
  
  Scientiae Mathematicae Japonicae Online e-2009
  
  Pages: 225-231
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] A perturbation of normal operators on a Hilbert space2008
- Author(s)
  T, Miura, H.Oka, G.Hirasawa, S.Takahasi, N.Niwa, A.Uchiyama
- Journal Title
  
  Nonlinear Funct.Anal.Appl
  
  Pages: 549-557
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Quasinilpotent part of class A or (p, k)-quasihyponormal operators2008
- Author(s)
  K. Tanahashi, I. H. Jean, I. H. Kim and A. Uchiyama
- Journal Title
  
  Operator Theory : Advances and Applications 187
  
  Pages: 199-210
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] Quasinilpotent part of class A or (p, k)-quasihpo-normal operators2008
- Author(s)
  K.Tanahashi, I.H.Jeon, I.H.Kim, A.Uchiyama
- Journal Title
  
  Operator Theory : Advances and Applications
  
  Pages: 199-210
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540198
[Journal Article] On p-quasihyponormal operators2006
- Author(s)
  A.Uchiyama
- Journal Title
  
  Nihonakai Math.J. 16巻
  
  Pages: 113-128
- NAID
  110006245971
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Fuglede-Putnam theorem for (p, k)-quasihyponormal operators2006
- Author(s)
  K.Tanahashi, S.M.Patel, A.Uchiyama
- Journal Title
  
  Hokkaido University Technical Report Series in Mathematics 105
  
  Pages: 60-68
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Fuglede-Putnam's theorem for (p,k)-quasihyponormal operators2006
- Author(s)
  K.Tanahashi, S.M.Patel, A.Uchiyama
- Journal Title
  
  北海道大学数学講究録 105
  
  Pages: 60-68
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Quasinormality and Fuglede-Putnam theorem for class A (s, t) operators2006
- Author(s)
  S.Patel, K.tanahashi, A.Uchiyama, M.Yanagida
- Journal Title
  
  Nihonakai Math.J. 17巻
  
  Pages: 49-67
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] On Putnam's Inequality and Berger-Shaw's Inequality2006
- Author(s)
  A.Uchiyama
- Journal Title
  
  Hokkaido University Technical Report Series in Mathematics 105
  
  Pages: 45-50
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Fuglede-Putnam theorem for p-hyponormal or class Y operators2006
- Author(s)
  S.Mecheri, K.Tanahashi A.Uchiyama
- Journal Title
  
  Bull.Korean Math.Soc 43巻
  
  Pages: 747-753
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] On the isolated point of spectrum of paranormal operator2006
- Author(s)
  A.Uchiyama
- Journal Title
  
  Integral Equations and Operator Theory 55巻
  
  Pages: 145-151
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] A note on an operator transform S(T)2005
- Author(s)
  S.M.Patel, K.Tanahasi, A.Uchiyama
- Journal Title
  
  scientiae Mathematicae Japonicae 62
  
  Pages: 433-447
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] A note on an operator transform S(T)2005
- Author(s)
  S.M.Patel, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Scientiae Mathematicae Japonocae Online e-2005
  
  Pages: 433-447
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Extension of Putnam's inequality2005
- Author(s)
  M.Cho, S.M.Patel, K.Tanahasi, A.Uchiyama
- Journal Title
  
  京都大学数理解析研究所講究録 1558
  
  Pages: 71-79
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] A note on an operator transform S(T)2005
- Author(s)
  S.M.Patel, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Scientiae Mathematicae Japonicae 62
  
  Pages: 433-447
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Fuglede-Putnam theorem for (p, k)quasi-hyponormal operators2005
- Author(s)
  K.Tanahashi, S.M.Patel, A.Uchiyama
- Journal Title
  
  Hokkaido University Technical Report series in Mathematics 105
  
  Pages: 60-68
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Extension of Putnam's inequality2005
- Author(s)
  M.Cho, S.M.Patel, K.Tanahashihi, A.Uchiyama
- Journal Title
  
  京都大学数理解析研究所講究録 1558
  
  Pages: 71-79
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] On p-quasihyponormal operators2005
- Author(s)
  A.Uchiyama
- Journal Title
  
  Nihonkai Mathematical Journal 16
  
  Pages: 113-128
- NAID
  110006245971
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] On p-quasihyponormal operators2005
- Author(s)
  A.Uchiyama
- Journal Title
  
  Nihonkai Math.J. 16
  
  Pages: 113-128
- NAID
  110006245971
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Fuglede-Putnam's theorem for(p,k)-quasihyponormal operators2005
- Author(s)
  K.Tanahashi, S.M.Patel, A.Uchiyama
- Journal Title
  
  北海道大学数学講究録 105
  
  Pages: 60-68
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Extension of Putnam's inequality2005
- Author(s)
  M.Cho, S.M.Patel, K.Tanahashihi, A.Uchiyama
- Journal Title
  
  Rims Kokyuroku 1558
  
  Pages: 71-79
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Class A(s, t)作用素のFuglede-Putnam定理2005
- Author(s)
  S.M.Patel, K.Tanahasi, A.Uchiyama, M.Yanagida
- Journal Title
  
  京都大学数理解析研究所講究録 1427
  
  Pages: 128-136
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Extensions of Putnam's Inequality2005
- Author(s)
  M.Cho, S.M.Patel, K.Tanahashi, A.Uchiyama
- Journal Title
  
  京都大学数理解析研究所講究録 1458
  
  Pages: 71-79
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Spectrum of (p, k)-quasihyponormal operators2004
- Author(s)
  K.Tanahashi, A.Uchiyama, M.Cho
- Journal Title
  
  Rims Kokyuroku 1359
  
  Pages: 117-126
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Isolated points of spectrum of (p, k)-quasihyponormal operators2004
- Author(s)
  K.Tanahashi, A.Uchiyama, M.Cho
- Journal Title
  
  Linear Algebra and its Applications 382
  
  Pages: 221-229
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Spectrum of p-quasihyponormal, class A(s, t) operators2004
- Author(s)
  A.Uchiyama, K.Tanahashi, J.I.Lee
- Journal Title
  
  Rims Kokyuroku 1359
  
  Pages: 109-116
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Spectrum of class A(s, t) operators2004
- Author(s)
  K.Tanahashi, A.Uchiyama, J.I.Lee
- Journal Title
  
  Acta Sci.Math.(Szeged) 70
  
  Pages: 279-287
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Spectrum of class A(s,t) operators2004
- Author(s)
  K.Tanahashi, A.Uchiyama, J.I.Lee
- Journal Title
  
  Acta Sci.Math.(Szeged) 70
  
  Pages: 279-287
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Isolated points of spectrum of (p,k)-quasihyponormal operators2004
- Author(s)
  K.Tanahashi, A.Uchiyama, M.Cho
- Journal Title
  
  Linear Algebra and its Applications 382
  
  Pages: 221-229
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] p-quasihyponormal, class A(s,t)作用素のスペクトルについて2004
- Author(s)
  A.Uchiyama, K.Tanahashi, J.I.Lee
- Journal Title
  
  京都大学数理解析研究所講究録 1359
  
  Pages: 119-116
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] Isolated point of spectrum of (p,k)-quasihyponormal operators2004
- Author(s)
  K.Tanahashi, A.Uchiyama, M.Cho
- Journal Title
  
  Linear Algebra and its Applications 382
  
  Pages: 221-229
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] p-quasihyponormal,class A(s,t)作用素のスペクトルについて2004
- Author(s)
  A.Uchiyama, K.Tanahashi, J.I.Lee
- Journal Title
  
  京都大学数理解析研究所講究録 1359
  
  Pages: 119-116
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Spectrum of class A(s,t) operators2004
- Author(s)
  A.Uchiyama, K.Tanahashi, J.I.Lee
- Journal Title
  
  Acta Sci.Math.(Szeged) 70
  
  Pages: 279-287
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] (p,k)-quasihyponormal 作用素のスペクトルについて2004
- Author(s)
  棚橋, 内山, 長
- Journal Title
  
  京都大学数理解析研究所講究録 1359
  
  Pages: 117-126
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Spectrum of class A(s,t) operators2004
- Author(s)
  A.Uchiyama, K.Tanahasi J.I.Lee
- Journal Title
  
  Acta Sci.Math. (Szeged) 70
  
  Pages: 279-287
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] p-quasihyponormal, class A(s,t) 作用素のスペクトルについて2004
- Author(s)
  A.Uchiyama, K.Tanahashi, J.I.Lee
- Journal Title
  
  京都大学数理解析研究所講究録 1359
  
  Pages: 109-116
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Log-hyponormal operatorのquasisimilarity2004
- Author(s)
  棚橋, 内山, 長
- Journal Title
  
  京都大学数理解析研究所講究録 1359
  
  Pages: 117-126
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] On quasisimilarity for Log-hyponormal operators2004
- Author(s)
  I.H.Jeon, K.Tanahasi, A.Uchiyama
- Journal Title
  
  Glasgow Math.J. 46
  
  Pages: 169-176
- Data Source
  KAKENHI-PROJECT-16740083
[Journal Article] On quasisimilarity of log-hyponormal operators2004
- Author(s)
  I.H.Jeon, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Glasgow Mathematical Journal 46
  
  Pages: 169-176
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Log-hyponormal operatorのquasisimilarity2004
- Author(s)
  棚橋, 内山, 長
- Journal Title
  
  京都大学数理解析研究所講究録 1359
  
  Pages: 117-126
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] The σ-convexity of all bounded convex sets in Rn and Cn2003
- Author(s)
  H.Takemoto, A.Uchiyama, L.Zsido
- Journal Title
  
  Nihonkai Mathematical Journal 4
  
  Pages: 61-64
- NAID
  110000069864
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] On p-quasihyponormal operators and quasisimilarity2003
- Author(s)
  I.H Jeon, J.I.Lee, A.Uchiyama
- Journal Title
  
  Mathematical Inequalities & Applications 6
  
  Pages: 309-315
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] An Example of Non-Reducing Eigenspace of a Paranormal Operators2003
- Author(s)
  A.Uchiyama
- Journal Title
  
  Nihonkai Mathematical Journal 14
  
  Pages: 121-123
- NAID
  110001041436
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] On p-quasihyponormal operators and quasisimilarity2003
- Author(s)
  I.H.Jeon, J.I.Lee, A.Uchiyama
- Journal Title
  
  Mathematical Inequalities & Applications 6
  
  Pages: 309-315
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Algebraically paranormal operator と Weylの定理2003
- Author(s)
  K.Tanahashi, A.Uchiyama, J.I.Lee
- Journal Title
  
  京都大学教理解析研究所講究録 1312
  
  Pages: 93-99
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Algebraically paranormal operator and Weyl's theorem2003
- Author(s)
  K.Tanahashi, A.Uchiyama, J.I.Lee
- Journal Title
  
  RIMS KOKYUROKU 1312
  
  Pages: 93-99
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] An Example of Non-Reducing Eigenspace of a Paranormal operatosrs2003
- Author(s)
  A.Uchiyama
- Journal Title
  
  Nihonkai Mathematical Journal 14
  
  Pages: 121-123
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] The o-convexity of all bounded convex sets in Rn and Cn2003
- Author(s)
  H.Tkemoto, A.Uchiyama, L.Zsido
- Journal Title
  
  Nihonkai Mathematical Journal 4
  
  Pages: 61-64
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] On the isolated points of spectrum of paranormal operators
- Author(s)
  A.Uchiyama
- Journal Title
  
  Integral Equations and Operator Theory (to appear)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] On the isolated points of spectrum of paranormal operators
- Author(s)
  A.Uchiyama
- Journal Title
  
  Integral Equations and Operator Theory to appear
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Fuglede-Putnam theorem for p-hyponormal or class Y operators
- Author(s)
  S.Mecheri, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Bulletin of Korean Mathematical Society (to appear)
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Fuglede-Putnam theorem for p-hyponormal or class Y operators
- Author(s)
  S.Mecheri, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Bulletin of Korean Mathematical Society to appear
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Journal Article] Fuglede-Putnam theorem for p-hyponormal or class Y operators
- Author(s)
  S.Mecheri, K.Tanahashi, A.Uchiyama
- Journal Title
  
  Bulletin of Korean Mathematical Society (to appear)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540180
[Presentation] Numerical range and the unitarity2010
- Author(s)
  A.Uchiyama
- Organizer
  International Conference on commutative Banach algebras and their Applications
- Place of Presentation
  山形大学工学部
- Year and Date
  2010-03-21
- Data Source
  KAKENHI-PROJECT-20540198
[Presentation] Numerical range and the unitarity2010
- Author(s)
  Uchiyama A.
- Organizer
  International Conference on commutative Banach algebras and their applications
- Place of Presentation
  山形大学工学部
- Year and Date
  2010-03-21
- Data Source
  KAKENHI-PROJECT-20540198
[Presentation] Some spectral properties which imply Bishop's property(β)2009
- Author(s)
  Uchiyama A.
- Organizer
  International Conference : Operator Theory and Its Applications(KOTAC2009)
- Place of Presentation
  韓国慶北大学
- Year and Date
  2009-06-20
- Data Source
  KAKENHI-PROJECT-20540198
[Presentation] Some spectral properties which imply Bishop's Property (β)2009
- Author(s)
  A.Uchiyama
- Organizer
  International Conference : Operator theory and Its Applications (KOTAC 2009)
- Place of Presentation
  韓国慶北大学
- Year and Date
  2009-06-20
- Data Source
  KAKENHI-PROJECT-20540198

1. TANAHASHI Kotaro (90142398)

# of Collaborated Projects: 1 results

# of Collaborated Products: 22 results
2. TAKEMOTO Hideo (00004408)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
3. MIURA Yasuhiko (20091647)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. Sato Enji (80107177)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 古谷康雄 (70234903)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Uchiyama Atsushi 内山 敦

内山 敦 ウチヤマ アツシ

UCHIYAMA Atsushi 内山 敦

Research Projects

Research Products

Co-Researchers

Operators on some function spaces in harmonic analysis

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Operator Inequalities and Spectral Analysis of Non-normal operatorsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

作用素不等式と非正規作用素の研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Research of operator inequalities and log-hyponormal operators

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Fulgled-Putnam theorem and quasisimilarity of class p-WA(s,t) operators2020

Author(s)

Journal Title

Data Source

[Journal Article] An indefinite range inclusion theorem for triplets of bounded lineara operators on a Hilbert space2020

Author(s)

Journal Title

Data Source

[Journal Article] Weyl's theorem and Punam's inequality for p-WA(s,t) operators2018

Author(s)

Journal Title

Data Source

[Journal Article] An extension of the Fuglede-Putnam's theorem to class A operators2010

Author(s)

Journal Title

Data Source

[Journal Article] Bishop's property (β) for paranormal operators2009

Author(s)

Journal Title

Data Source

[Journal Article] On extension of some Fuglede-Putnam type theorems involving (p, k)-quasihyponormal, Spectral, and dominant operators2009

Author(s)

Journal Title

Data Source

[Journal Article] Bishop's property(β)for paranormal operators2009

Author(s)

Journal Title

Data Source

[Journal Article] On extensions of some Fuglede-Putnam type theorems involving(p,k)-quasihyponormal, spectral, and dominant operators2009

Author(s)

Journal Title

Data Source

[Journal Article] Weyl type theorems for(p,k)-quasihyponormal operators2009

Author(s)

Journal Title

Data Source

[Journal Article] Weyl type theorem for (p, k)-quasihyponormal operators2009

Author(s)

Journal Title

Data Source

[Journal Article] Weyl type theorem for (p, k)-quasihyponortaal operators2009

Author(s)

Journal Title

Data Source

[Journal Article] A perturbation of normal operators on a Hilbert space2008

Author(s)

Journal Title

Data Source

[Journal Article] Quasinilpotent part of class A or (p, k)-quasihyponormal operators2008

Author(s)

Uchiyama Atsushi 内山敦

内山敦ウチヤマアツシ

UCHIYAMA Atsushi 内山敦