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CHO Muneo  長 宗雄

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… Alternative Names

長 宗雄  チヨウ ムネオ

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Researcher Number 10091620
Affiliation (Current) 2025: 神奈川大学, 公私立大学の部局等, 名誉教授
Affiliation (based on the past Project Information) *help 2012 – 2019: 神奈川大学, 理学部, 教授
2014: 神奈川大学, 044, 教授
1997 – 2011: 神奈川大学, 工学部, 教授
1995: 上越教育大学, 学校教育学部, 助教授
1993: 上越教育大学, 学校教育学部, 助教授
1988 – 1991: 上越教育大学, 学校教育学部, 助教授
1986: 上越教育大学, 学校教育学部, 助教授
Review Section/Research Field
Principal Investigator
Basic analysis / 解析学 / Basic analysis
Except Principal Investigator
代数学・幾何学 / Basic analysis / 解析学 / Basic analysis / Geometry
Keywords
Principal Investigator
Hilbert space / spectrum / operator inequality / trace formula / numerical range / operator / Banach space / polar decomposition / hyponormal operator / principal function … More / Taylor spectrum / linear operator / 線形作用素 / ヒルベルト空間 / trace / Aluthge transform / Shannon inequality / Putnam inequality / Xia spectrum / Putnamの不等式 / スペクトル / ∞-isometric / Cの*乗-algebra / symmetry / C^*-algebra / isometry / conjugation / operator algebra / entropy / dynamical system / Operator Theory / Entropy / Shannon's inequality / moment problem / Riesz idempotent / principal funcition / Operator inequality / n-tuple / hyponormal / joint spectrum / Singular intergral model / p-hyponomal operator / Linear operator / Riemann-Hilbert problem / Weylの定理 / symbol / Riemann-Hilbert問題 / singular integral model / p-hyponormal作用素 / リーマン・ヒルベルト問題 / multioperator / symmetrizable operator / Browder spectrum / Fredholm Theory / SVEP / n-paranormal / Weyl's Theorem / perturbation / Banach algebra / positive functional / Dynamical system / C*-algebra / Spectrum / Operator / operator equation / composition operator / Bishop's property / normal opreator / elementary operator / Polaroid operator / normal operator / 力系 / Polaloid operator / Bishop property / m-isometry / normaloid / paranprmal operator / 力学系 / 量子力学 / リーマン-ヒルベルト問題 / pーhyponrmal / hyponamal / uniformly smooth / uniformly convex … More
Except Principal Investigator
HYPONORMAL OPERATORS / LORENTZ SPACES / COMMUTATORS / KAC ALGEBRAS / GROUPOID C-ALGEBRAS / CHAOS DYNAMICAL SYSTEMS / POSITIVE TRIGONOMETRIC POLYNOMIALS / ESSENTIALLY MNORMAL OPERATORS / log-hyponormal operators / p-hyponormal operators / Lorentz空間 / 可換標準的同型 / Simultaneous unitary dilation / Essentially definite operators / 古田不等式 / Aluthge変換 / ハンケル変換 / Morrey空間 / 位相的グルーポイド / カオス写像 / 耳正規作用素 / Loventz空間 / groupuid C-algebra / 亜正規作用素 / Lobentz空間 / 交換子 / Kac algebra / groupuid C^*algebra / カオス力学系 / 正値三角多項式 / 本質的正規作用素 / chaos theory / p-hyponormal operator / Pfaffian / Dirac equation / Phase transition / Navier-Stokes equation / Hardy space / Singular integral / Jaynes-Cummingsモデル / Putnam不等式 / Turnbull等式 / ホロノミック系 / 相転移 / Navier-Stokes方程式 / Hardy空間 / D加群 / 量子アルゴリズム / 指数理論 / 作用素環 / 非線型力学系 / 強一意接続定理 / 特異積分 / ハーディ空間 / sharoly homogemeous set / Delsarte design / coset geometuy / distance-regular graph / algebraic combinatoics / 擬正則写像 / 調和境界 / 理想境界 / q-circular / q-normal / subnormal operator / Hilbert space / q-normal operator / deformed operator / unbounded operator / M_0空間 / M-構造 / 層型空間 / Neumann問題 / Dirichlet問題 / リ-マンダブル / ラプラシアン / M_3-space / M_1-space / d-paracompact / K-semistratifiable / Las^^vnew space / CF family Less
  • Research Projects

    (16 results)
  • Research Products

    (163 results)
  • Co-Researchers

    (31 People)
  •  Development around various type entropy as well as operator algebraic basic research on measurable dynamical system and topological dynamical systemPrincipal Investigator

    • Principal Investigator
      Cho Muneo
    • Project Period (FY)
      2015 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Kanagawa University
  •  Research for the interplay between measurable dynamical systems and topological dynamical systems through the basic method of operatorPrincipal Investigator

    • Principal Investigator
      CHO Muneo
    • Project Period (FY)
      2012 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Kanagawa University
  •  The construction ofthe spectral theory on quantum deformed operators and its application to quantum physics

    • Principal Investigator
      OTA Shoichi
    • Project Period (FY)
      2008 – 2011
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Kyushu University
  •  Research in the noncommutative dynamical systems through the method of functional analysis together with the research in the interplay between topological dynamical systems and operator theoryPrincipal Investigator

    • Principal Investigator
      CHO Muneo
    • Project Period (FY)
      2008 – 2011
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Kanagawa University
  •  Generalizations to Operator Theory of Shannon's inequality of Information Theory and its applicationPrincipal Investigator

    • Principal Investigator
      CHO Muneo
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Kanagawa University
  •  Research of operator inequality and spectrum using computerPrincipal Investigator

    • Principal Investigator
      CHO Muneo
    • Project Period (FY)
      2002 – 2004
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Kanagawa University
  •  RESEARCHES ON SIMULTANEOUS UNITARY DILATIONS OF OPERATORS ON HILBERT SPACES

    • Principal Investigator
      OKAYASU Takateru
    • Project Period (FY)
      2000 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      YAMAGATA UNIVERSITY
  •  Comprehensive Study of Real Analysis and Functional Analysis

    • Principal Investigator
      MIYACHI Akihiko
    • Project Period (FY)
      1999 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (A).
    • Research Field
      Basic analysis
    • Research Institution
      Tokyo Woman's Christian University
  •  Riemann-Hilbert problemPrincipal Investigator

    • Principal Investigator
      CHO Muneo
    • Project Period (FY)
      1997 – 1999
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Kanagawa University
  •  解析学におけるR;emann-Hilbert問題の代数的・幾何学的研究Principal Investigator

    • Principal Investigator
      長 宗雄
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Joetsu University of Education
  •  層型空間に関する未解決問題について

    • Principal Investigator
      溝上 武実
    • Project Period (FY)
      1993
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Joetsu University of Education
  •  作用素論の研究Principal Investigator

    • Principal Investigator
      長 宗雄
    • Project Period (FY)
      1991
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Joetsu University of Education
  •  多様体の構造についての総合的研究

    • Principal Investigator
      森 博
    • Project Period (FY)
      1990
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Joetsu University of Education
  •  M_3・M_1問題の総合的研究

    • Principal Investigator
      溝上 武実
    • Project Period (FY)
      1989
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Joetsu University of Education
  •  代数的組合せ論

    • Principal Investigator
      伊藤 達郎
    • Project Period (FY)
      1988
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Joetsu University of Education
  •  リーマン多様体の総合的研究

    • Principal Investigator
      田中 博
    • Project Period (FY)
      1986
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Joetsu University of Education

All 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 Other

All Journal Article Presentation Book

  • [Book] 関数解析入門 線形作用素のスペクトル2018

    • Author(s)
      荷見守助、長 宗雄、瀬戸道生
    • Total Pages
      248
    • Publisher
      内田老鶴圃
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On operators T commuting with CTC where C is a conjugation2020

    • Author(s)
      M. Cho, E. Ko, J.E. Lee
    • Journal Title

      Bull. Korean Math. Soc.

      Volume: 57 Pages: 69-79

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] (A,m)-symmetric commuting tuples of operators on a Hilbert space2019

    • Author(s)
      M. Cho, O.A.M.Sid Ahmd
    • Journal Title

      Math. Ineq. Appl.

      Volume: 22 Issue: 3 Pages: 931-947

    • DOI

      10.7153/mia-2019-22-63

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Skew m-complex symmetric operators2019

    • Author(s)
      M. Cho, E. Ko, J.E. Lee
    • Journal Title

      Filomat

      Volume: 33 Issue: 10 Pages: 2975-2983

    • DOI

      10.2298/fil1910975c

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On the approximate point spectra of m-complex symmetric operators, [m,C]-symmetric operators and others2019

    • Author(s)
      M. Cho, J.E. Lee, B. Nacevska Nastovska, T. Saito
    • Journal Title

      Functional Analysis, Application Computation

      Volume: 11(1) Pages: 11-20

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] CLASS p-wA(s, t) OPERATORS AND RANGE KERNEL RTHOGONALITY2019

    • Author(s)
      M. Cho, T. Prasad, M.H.M. Rashid, K. Tanahashi, A. Uchiyama
    • Journal Title

      Scientiae Mathematicae Japonicae

      Volume: 82 Issue: 1 Pages: 45-55

    • DOI

      10.32219/isms.82.1_45

    • NAID

      130007681539

    • ISSN
      1346-0447
    • Language
      English
    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Fuglede-Putnam Theorem and quasisimilarity of class p-wA(s,t) operators2019

    • Author(s)
      M. Cho, T. Prasad, M.H.M. Rashid, K. Tanahashi, A. Uchiyama
    • Journal Title

      Operators and Matrices

      Volume: 13 Issue: 1 Pages: 293-299

    • DOI

      10.7153/oam-2019-13-19

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Complex symmetric operators and isotopic vectors on Banach spaces2019

    • Author(s)
      M. Cho, Injo Hur, J.E. Lee
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 479 Issue: 1 Pages: 752-764

    • DOI

      10.1016/j.jmaa.2019.06.049

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Spectral properties of square hyponormal operators2019

    • Author(s)
      M. Cho, D. Mosic, B. Nacevska Nastovska, T. Saito
    • Journal Title

      Filomat

      Volume: 33-15 Issue: 15 Pages: 4845-4854

    • DOI

      10.2298/fil1915845c

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Remarks on n-normal operators2018

    • Author(s)
      M. Cho, J.E. Lee, K. Tanahashi and A. Uchiyama
    • Journal Title

      Filomat

      Volume: 32 Issue: 15 Pages: 5441-5451

    • DOI

      10.2298/fil1815441c

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On (m,C)-isometric commuting tuples of operators on a Hilbert space2018

    • Author(s)
      O.A.M. Sid Ahmd, M. Cho and J.E. Lee
    • Journal Title

      Results in Mathematics

      Volume: 73 Issue: 2 Pages: 5101-5131

    • DOI

      10.1007/s00025-018-0810-0

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Spectral properties of n-normal operators2018

    • Author(s)
      M. Cho and Biljana Nacevska
    • Journal Title

      Filomat

      Volume: 32 Issue: 14 Pages: 5063-5069

    • DOI

      10.2298/fil1814063c

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On [m, C]- symmetric operators2018

    • Author(s)
      M. Cho, J.E. Lee, K. Tanahashi and J. Tomiyama
    • Journal Title

      Kyungpook Math. J.

      Volume: 58 Pages: 637-650

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Complex isosymmetric operators2018

    • Author(s)
      M. Cho, J.E. Lee, T. Prasad and K. Tanahashi
    • Journal Title

      Adv. Oper. Theory

      Volume: 3 Issue: 3 Pages: 620-631

    • DOI

      10.15352/aot.1712-1267

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Three-operator problem in Banach spaces2018

    • Author(s)
      M. Cho, J. Castillo and M. Gonzalez
    • Journal Title

      Extracta Math.

      Volume: 33 Issue: 2 Pages: 149-165

    • DOI

      10.17398/2605-5686.33.2.149

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Weyl's theorem and Putnam's Inequality for class p-wA(s,t) operators2018

    • Author(s)
      M. Cho, M.H.M. Rashid, T. Prasad, K. Tanahashi and A. Uchiyama
    • Journal Title

      Acta Sci. Math. (Szeged)

      Volume: 84 Issue: 3-4 Pages: 573-589

    • DOI

      10.14232/actasm-017-020-y

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On ∞-complex symmetric operators2018

    • Author(s)
      M. Cho, E. Ko and J.E. Lee
    • Journal Title

      Glasgow Math. J.

      Volume: 60 Issue: 1 Pages: 35-50

    • DOI

      10.1017/s0017089516000550

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] (∞, C)-isometric operators2017

    • Author(s)
      M. Cho, E. Ko, Ji E. Lee
    • Journal Title

      Operators and Matrices

      Volume: 11 Issue: 3 Pages: 793-806

    • DOI

      10.7153/oam-11-56

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] The pertubation classes for closed operators2017

    • Author(s)
      P. Aiena, M. Cho, M. Gonzalez
    • Journal Title

      Filomat

      Volume: 31:3 Issue: 3 Pages: 2073-2080

    • DOI

      10.2298/fil1703621a

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On skew [m,C]-symmetric operators2017

    • Author(s)
      M. Cho, Biljana Nacevska and J. Tomiyama
    • Journal Title

      Adv. Oper. Theory

      Volume: 2 Pages: 468-474

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On [m,C]-complex symmetric operators2017

    • Author(s)
      M. Cho, J.E. Lee and H. Motoyoshi
    • Journal Title

      Filomat

      Volume: 31 Issue: 7 Pages: 2073-2080

    • DOI

      10.2298/fil1707073c

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On symmetric and skew symmetric operators2017

    • Author(s)
      C. Benhida, M. Cho, E. Ko and J.E. Lee
    • Journal Title

      Filomat

      Volume: 31 Issue: 1 Pages: 2073-2080

    • DOI

      10.2298/fil1801293b

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Properties of m-complex symmetric operators2017

    • Author(s)
      M. Cho, E. Ko and J.E. Lee
    • Journal Title

      Stud. Univ. Babes-Bolyai Math.

      Volume: 62 Issue: 2 Pages: 233-248

    • DOI

      10.24193/subbmath.2017.2.09

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Elementary properties of ∞-isometric operators on a Hilbert space2016

    • Author(s)
      M. Cho, C. Gu, Woo Y. Lee
    • Journal Title

      Linear Algebra Appl.

      Volume: 511 Pages: 378-402

    • DOI

      10.1016/j.laa.2016.09.023

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On m-complex symmetric operators II2016

    • Author(s)
      M. Cho, E. Ko, Ji E. Lee
    • Journal Title

      Mediter. J. Math.

      Volume: 13 Issue: 5 Pages: 3255-3264

    • DOI

      10.1007/s00009-016-0683-y

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On (m,C)-isometric2016

    • Author(s)
      M. Cho, E. Ko and J.E. Lee
    • Journal Title

      Complex Anal. Oper. Theory.

      Volume: 4 Issue: 8 Pages: 1-16

    • DOI

      10.1007/s11785-016-0549-0

    • Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Spectrum of class p-wA(s,t) operators2016

    • Author(s)
      M. Cho, M. Rashid, K. Tanahashi, A. Uchiyama
    • Journal Title

      Acta Sci. Math. (Szeged)

      Volume: 82 Issue: 3-4 Pages: 641-649

    • DOI

      10.14232/actasm-015-275-0

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] On m-complex symmetric operators2016

    • Author(s)
      M. Cho, E. Ko, Ji E. Lee
    • Journal Title

      Mediter. J. Math.

      Volume: 13 Pages: 2025-2038

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] operatorsOn m-complex symmetric operators2015

    • Author(s)
      M. Cho, E. Ko and J.E. Lee
    • Journal Title

      Mediterr. J. Math.

      Volume: 20 Pages: 1-14

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Journal Article] Reverses of the triangle inequalities in inner product spaces2014

    • Author(s)
      L. Zhang, T. Ohwada and M. Cho
    • Journal Title

      Math. Inequalities and Applications

      Volume: 17 Issue: 2 Pages: 539-555

    • DOI

      10.7153/mia-17-41

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] A note on cubically hyponormal weighted shifts2014

    • Author(s)
      C. Li, M. Cho and M.R. Lee
    • Journal Title

      Bull. Korean Math. Soc.

      Volume: 51 Pages: 1031-1040

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Invariant subspace problem for ExB-operators2014

    • Author(s)
      M. Cho
    • Journal Title

      unctional Analysis, Approximation and Computation

      Volume: 6:2 Pages: 61-64

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] On polynomially *-paranormal operators2013

    • Author(s)
      M. Cho, L. Zhang, A. Uchiyama and K. Tanahashi
    • Journal Title

      Functional Analysis, Approximation and Computation

      Volume: 5:2 Pages: 11-16

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Taylor exactness, SVEP and spectral mapping theorems2013

    • Author(s)
      M. Cho and R. Harte
    • Journal Title

      J. Math. Forum

      Volume: 8 Pages: 1493-1501

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Transfinite ranges and the local spectrum2013

    • Author(s)
      M. Cho, R. Harte and V. Muller
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 398 Pages: 403-408

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Invertible weighted shift operators which are m-isometries2013

    • Author(s)
      M. Cho, S. Ota and K. Tanahashi
    • Journal Title

      Proc. Amer. Math. Soc.

      Volume: 141 Pages: 4241-4247

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] On *-n-paranormal operators2013

    • Author(s)
      M. Cho and S. Ota
    • Journal Title

      Journal of Mathematics Research

      Volume: 5 Pages: 107-113

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] On *-n-paranormal operators on Banach spaces2013

    • Author(s)
      M. Cho and K. Tanahashi
    • Journal Title

      J. Math. Comput. Sci

      Volume: 4 Pages: 1-9

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Weyl's theorems and extensions of bounded operatprs2012

    • Author(s)
      P. Aiena, M. Cho, and L. Zhang
    • Journal Title

      Tokyo J. Math.

      Volume: 35 Pages: 297-289

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Spectral commutativity of multioperators,2012

    • Author(s)
      M. Cho and V. Muller
    • Journal Title

      Functional Analysis, Application and Computation

      Volume: 4:1 Pages: 21-25

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Spectral commutativity of multioperators2012

    • Author(s)
      M. Cho, V. Muller
    • Journal Title

      Functional Analysis Approximation and Computation

      Volume: 4, 1巻 Pages: 21-25

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Tanahashi, Invertible weighted shift operators which are m-isometries2012

    • Author(s)
      M. Cho, S. Ota, K
    • Journal Title

      Proceedings of American Mathematical society

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Journal Article] Tanahashi, On m-isometric operators2012

    • Author(s)
      M Cho, S. Ota, K
    • Journal Title

      Glasnik Matematicki

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Journal Article] Spectral properties of m-isometric operators2012

    • Author(s)
      M. Cho, S. Ota, K. Tanahashi and A. Uchiyama
    • Journal Title

      Functional Analysis, Application and Computation

      Volume: 4:2 Pages: 33-39

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Journal Article] Bishop's property(β) and an elementary operator2011

    • Author(s)
      M. Cho, S. V. Djordjevic, B. P. Duggal
    • Journal Title

      Hokkaido Math. J

      Volume: 40巻 Pages: 337-356

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On λ-commuting operators2011

    • Author(s)
      長宗雄、大和田智義、L.Zhang
    • Journal Title

      Inter.Math.Forum

      Volume: 34 Pages: 1685-1690

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Hyponormal operator and two-isometry, Far East2011

    • Author(s)
      M. Cho, T. Nakazi, T. Yamazaki
    • Journal Title

      J. Mathematical Science

      Volume: 49巻 Pages: 111-119

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Bishop's property (β) and an elementary operator2011

    • Author(s)
      長宗雄、S.V.Djordjevic, B.P.Duggal
    • Journal Title

      Hokkaido Math.J.

      Volume: 40 Pages: 337-356

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Commutativity to within scalors on Banach space2011

    • Author(s)
      長宗雄、R.Harte, 太田昇一
    • Journal Title

      Functional Analysis, Approximation and Computation

      Volume: 3:2 Pages: 69-77

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Commutativity to within scalars on Banach space2011

    • Author(s)
      M. Cho, R. Harte, S. Ota
    • Journal Title

      Functional Analysis, Approximation and Computation

      Volume: vol.3 Pages: 69-77

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Journal Article] Commutativity to within scalars on Banach space, Functional Analysis2011

    • Author(s)
      M. Cho, R. Harte, S. Ota
    • Journal Title

      Approximation and Computation

      Volume: 3, 2巻 Pages: 69-77

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Polaroid type operators under quasiaffinities2010

    • Author(s)
      P.Aiena, 長宗雄, M.Gonzalez
    • Journal Title

      J.Math.Anal.Appl. 371

      Pages: 485-495

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Polaroid type operators under quasi-affinities2010

    • Author(s)
      長宗雄, P.Aiena, M.Gonzalez
    • Journal Title

      J.Math.Anal.Appl.

      Volume: 371 Pages: 485-495

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Characterizations of p-hyponormal and weak hyponormal weighted composition operators2010

    • Author(s)
      長宗雄, 山崎丈明
    • Journal Title

      Acta Sci.Math.(Szeged)

      Volume: 76 Pages: 173-181

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Operator equation AB=BA2010

    • Author(s)
      M.Cho, B.P.Duggal, R.Harte, S.Ota
    • Journal Title

      International Mathematical Forum vol.5 no.53

      Pages: 2629-2637

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Journal Article] Characterizations of p-hyponormal and weak hyponormal weighted composition operators, Acta Sci2010

    • Author(s)
      M. Cho, T. Yamazaki
    • Journal Title

      Math.(Szeged)

      Volume: 76巻 Pages: 173-181

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Operator equation AB=BA2010

    • Author(s)
      M. Cho, B. P. Duggal, R. Harte, S. Ota
    • Journal Title

      International Mathematical Forum

      Volume: vol.5 no.53 Pages: 2629-2637

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Journal Article] A remark on numerical range of semi-hyponormal operators2010

    • Author(s)
      長宗雄, 古谷正
    • Journal Title

      Linear and Multi Linear Algebras

      Volume: 58 Pages: 711-714

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Polaroid type operators under quasi-affinities2010

    • Author(s)
      P. Aiena, M. Cho, M. Gonzalez
    • Journal Title

      J. Math. Anal

      Volume: 371巻 Pages: 485-495

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On an elementary operator with-w-hyponormal operator entries2010

    • Author(s)
      長宗雄, S.V.Djordjevic, B.P.Duggal, 山崎丈明
    • Journal Title

      LAA 433

      Pages: 2070-2079

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On an elementary operator with p-hyponormal operator entries2010

    • Author(s)
      長宗雄, S.V.Djordjevic, B.P.Duggal, 山崎丈明
    • Journal Title

      Linear Algebra and its Applications

      Volume: 433 Pages: 2070-2079

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] A remark on numerical range of semi-hyponormal operators2010

    • Author(s)
      長宗雄, 古谷正
    • Journal Title

      LMLA 58

      Pages: 711-714

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On an elementary operator with w-hyponormal operator entries2010

    • Author(s)
      M. Cho, S. V. Djordjevic, B. P. Duggal, T. Yamazaki
    • Journal Title

      LAA

      Volume: 433巻 Pages: 2070-2079

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Operator equation AB=λBA2010

    • Author(s)
      M. Cho, B. P. Duggal, R. Harte, S. Ota
    • Journal Title

      Inter. Math. Forum

      Volume: 53巻 Pages: 2629-263

    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Operator equation AB=λBA2010

    • Author(s)
      長宗雄, B.Duggal, R.Harte, 太田昇一
    • Journal Title

      International Math.Forum

      Volume: 53 Pages: 2629-2637

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] A remark on numerical range of semi-hyponormal operators2010

    • Author(s)
      M. Cho, T. Huruya
    • Journal Title

      LMLA

      Volume: 58巻 Pages: 711-714

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On the operator equation AB=zBA2009

    • Author(s)
      長 宗雄, Jun Ik Lee 山崎丈明
    • Journal Title

      Scienticae Mathematicae Japonicae 69

      Pages: 49-55

    • NAID

      10025095115

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Flat extensions of nonsingular moment matrices2009

    • Author(s)
      M. Cho, C. Li
    • Journal Title

      Integr. Equat. Oper. Th

      Volume: 65巻 Pages: 243-254

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Flat Extensions of nonsingular moment matrices2009

    • Author(s)
      Chunji Li, 長宗雄
    • Journal Title

      Integral Equations and Operator Theory 65

      Pages: 243-254

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] The Browder and Weyl spectra of an operator and its diagonal2009

    • Author(s)
      M. Cho, B. P. Duggal, S. V. Djordjevic
    • Journal Title

      Funct. Anal. Approx. Comput

      Volume: 1巻 Pages: 7-18

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On Xia's proposition2009

    • Author(s)
      長 宗雄, 古谷 正, Jun Ik Lee
    • Journal Title

      International Mathematical Forum 4

      Pages: 161-164

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Trace Formula for Partial isometry case2009

    • Author(s)
      長宗雄, 古谷正
    • Journal Title

      Tokyo J.Math. 32

      Pages: 27-32

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Determinants of characteristic functions of p-hyponormal operators2009

    • Author(s)
      長宗雄, 古谷正
    • Journal Title

      Math.Proc.Royal Irish Academy 109

      Pages: 137-146

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Trace formula for partial isometry case2009

    • Author(s)
      M. Cho, T. Huruya
    • Journal Title

      Tokyo J. Math

      Pages: 27-32

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On Xia's proposition2009

    • Author(s)
      M. Cho, T. Huruya, J. I. Lee
    • Journal Title

      Inter. Math. Forum

      Volume: 4巻 Pages: 161-164

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On the iterated Duggal transforms2009

    • Author(s)
      M. Cho, I. B. Jung, W. Y. Lee
    • Journal Title

      Kyungpook Math. J.

      Volume: 49巻 Pages: 647-650

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Determinants of characteristic functions of p-hyponormal operators2009

    • Author(s)
      長宗雄, 古谷正
    • Journal Title

      Proc.Royal Irish Acad.A 109

      Pages: 137-146

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] On operator equation AB=zBA2009

    • Author(s)
      M. Cho, J. I. Lee, T. Yamazaki
    • Journal Title

      Sci. Mat. Japon

      Pages: 49-55

    • NAID

      10025095115

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Determinants of characteristic functions of p-hyponormal operators2009

    • Author(s)
      M. Cho, T. Huruya
    • Journal Title

      Proc. Math. J. Royal Irish Acad.

      Volume: 109巻 Pages: 137-146

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Spectral area estimations for norm of commutators2008

    • Author(s)
      長 宗雄・中路 貴彦
    • Journal Title

      J.Korean Math.Soc. 44

      Pages: 855-861

    • NAID

      120006459476

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Xia spectrum for some class of operators2008

    • Author(s)
      長 宗雄, 古谷 正棚橋浩太郎
    • Journal Title

      Integral Equations & Operator Theory 61

      Pages: 159-165

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Spectral area estimations for norms of commutators2008

    • Author(s)
      長 宗雄・中路 貴彦
    • Journal Title

      J. Korean Math. Soc. 44

      Pages: 855-861

    • NAID

      120006459476

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Xia spectrum for some class of operators2008

    • Author(s)
      長宗雄, 古谷正, 棚橋浩太郎
    • Journal Title

      Integr.Equat.Oper.Th. 61

      Pages: 159-165

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Putnam's inequality for class A operators and operator transform by Cho and Yamazaki2008

    • Author(s)
      長 宗雄・棚橋 浩太郎・内山 敦, S.M.Patel
    • Journal Title

      Sci.Math.Japon e

      Pages: 613-621

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Xia spectrum for some class of operators2008

    • Author(s)
      M. Cho, T. Huruya, K. Tanahashi
    • Journal Title

      Integr. Equat. Oper. Th

      Volume: 61巻 Pages: 159-165

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Spectrum and principal functions of operators2008

    • Author(s)
      M. Cho, M. Giga, A. H. Kim
    • Journal Title

      Operator Theory : Advances and Applications

      Volume: 187巻 Pages: 117-123

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Simple proof of Xia's proposition2008

    • Author(s)
      長 宗雄・古谷 正・瀬戸道生
    • Journal Title

      Inter. Math. Forum 42

      Pages: 2079-2082

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Simple proof of Xia's proposition2008

    • Author(s)
      長 宗雄・古谷 正・瀬戸 道生
    • Journal Title

      Inter.Math.Forum 42

      Pages: 2079-2082

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Spectrum and principal functions of operators2008

    • Author(s)
      長 宗雄, 儀我真理子, An Hyun Kim
    • Journal Title

      Operator Theory : Advance and Applications 187

      Pages: 117-123

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Journal Article] Spactral area estimations for norms of commutators2007

    • Author(s)
      M. Cho, T. Nakazi
    • Journal Title

      J. Korean Math. Soc. 44

      Pages: 855-861

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Simple proof of Xia's proposition2007

    • Author(s)
      M. Cho, T. Huruya, M. Seto
    • Journal Title

      Inter. Math. Forum 42

      Pages: 2079-2082

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Putnam's inequality for class A operators and operator transform by Cho and Yamazaki2007

    • Author(s)
      M. Cho, S. M. Patel, K. Tanahashi, A. Uchiyama
    • Journal Title

      Sci. Math. Japon

      Pages: 613-621

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Putnam's inequality for class A operators and operator transform by Cho and Yamazaki2007

    • Author(s)
      長 宗雄・棚橋浩太郎・内山 敦・S. M. Patel
    • Journal Title

      Sci. Math. Japon e

      Pages: 613-621

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Trace formulae of p-hyponormal operators II2006

    • Author(s)
      M. Cho, T. Huruya
    • Journal Title

      Hokkaido Math. J. 35

      Pages: 247-259

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] A remark on support of principal function for class A operators2006

    • Author(s)
      M. Cho, T. Huruya, M. Giga, T. Yamazaki
    • Journal Title

      Integr. Equat. Oper. Theory. 57

      Pages: 303-308

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Trace formulae of p-hyponormal operators II2006

    • Author(s)
      長宗雄, 古谷正
    • Journal Title

      Hokkaido Math. J. 35

      Pages: 247-259

    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Principal functions for high power of operators2006

    • Author(s)
      M. Cho, T. Huruya, A, H. Kim
    • Journal Title

      Tokyo J. Math. 29

      Pages: 111-116

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Principal functions for high power of operators2006

    • Author(s)
      長宗雄, 古谷正, A.H.Kim, C.Li
    • Journal Title

      Tokyo J. Math. 29

      Pages: 111-116

    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Trace formulae associated with the polar decomposition of operators2005

    • Author(s)
      長 宗雄, 古谷正, Chenji Li
    • Journal Title

      Math.Proc.Royal Irish Acad. 105

      Pages: 57-69

    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Relations between principal functions of p-hyponormal operators2005

    • Author(s)
      長 宗雄, 古谷 正
    • Journal Title

      J.Math.Soc.Japan 57

      Pages: 605-618

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] An operator transform from class A to the class of hyponormal operators and its application2005

    • Author(s)
      M. Cho, T. Yamazaki
    • Journal Title

      Integr. Equat. Oper. Theory. 53

      Pages: 497-508

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] An operator transform from class A to the class of hypormal operator and its application2005

    • Author(s)
      長 宗雄, 山崎文明
    • Journal Title

      Integr.Equat.Oper.Th. 53

      Pages: 497-508

    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Relation between principal functions of p-hyponormal operators2005

    • Author(s)
      M. Cho, T. Huruya
    • Journal Title

      J. Math. Soc. Japan 57

      Pages: 605-618

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Riesz idempotent and algebrally M-hyponormal operators2005

    • Author(s)
      長 宗雄, Young Min Han
    • Journal Title

      Integr.Equat.Oper.Th. 53

      Pages: 311-320

    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Trace formulae associated with the polar decomposition of operators2005

    • Author(s)
      M. Cho, T. Huruya, C. Li
    • Journal Title

      Math. Proc. Ryal Irish Acad. 105

      Pages: 57-69

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Relations between principal functions of p-hyponormal operators2005

    • Author(s)
      M.Cho, T.Huruya
    • Journal Title

      J.Math.Soc.Japan Vol.57

      Pages: 605-618

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] On Aluthge transform of p-hyponormal operators2005

    • Author(s)
      M. Cho, I. B. Jung, W. Y. Lee
    • Journal Title

      Integr. Equat. Oper. Theory 53

      Pages: 321-329

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Riesz idempotent and algebrally M-hyponormal operators2005

    • Author(s)
      M. Cho, Y. M. Han
    • Journal Title

      Integr. Equat. Oper. Theory. 53

      Pages: 311-320

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Unitary dilation for polar decompositions of p-hyponormal operators2005

    • Author(s)
      M. Cho, T. Huruya, K. Tanahashi
    • Journal Title

      Banach Center Publications 67

      Pages: 139-144

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] On Althuge transform of p-hyponormal operators2005

    • Author(s)
      長 宗雄, Il Bong Jung, Woo Young Lee
    • Journal Title

      Integr.Equat.Oper.Th. 53

      Pages: 321-329

    • Data Source
      KAKENHI-PROJECT-17540176
  • [Journal Article] Trace formulae of p-hyponormal operators2004

    • Author(s)
      長 宗雄, 古谷 正
    • Journal Title

      Studia Math. 161

      Pages: 1-18

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Isolated points of spectrum of (p,k)-quasihyponormal operators2004

    • Author(s)
      長 宗雄, 内山 敦, 棚橋浩太郎
    • Journal Title

      Linear Algebra & Appl. 382

      Pages: 221-229

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Mosaic and principal functions of log-hyponormal operators2004

    • Author(s)
      M.Cho, T.Huruya, T.Yamazaki
    • Journal Title

      Integr.Equat.Oper.Th. Vol.48

      Pages: 295-304

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Isolated points of spectrum of (p,k)-quasihyponormal operators2004

    • Author(s)
      長 宗雄, 棚橋浩太郎, 内山 敦
    • Journal Title

      Linear Alg.Appl. 382

      Pages: 221-229

    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Trace formulae of p-hyponormal operators2004

    • Author(s)
      M.Cho, T.Huruya
    • Journal Title

      Studia Math Vol.161

      Pages: 1-18

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Mosaic, and principal functions of log-hyponormal operators2004

    • Author(s)
      長 宗雄, 古谷 正, 山崎丈明
    • Journal Title

      Integr.Equat.Oper.Th. 48

      Pages: 295-304

    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Mosaic and principal functions of log-hyponormal operators2004

    • Author(s)
      長 宗雄, 古谷 正, 山崎文明
    • Journal Title

      Integr.Equat.Oper.Th. 48

      Pages: 295-304

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Journal Article] Isolated points of spectrum of (p, k)-quasihyponormal operators2004

    • Author(s)
      M.Cho, A.Uchiyama, K.Tanahashi
    • Journal Title

      Linear Algebra & Appl. Vol.382

      Pages: 221-229

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540190
  • [Presentation] Numerical ranges of Banach space operators2019

    • Author(s)
      M. Cho
    • Organizer
      The fifteenth workshop on numerical ranges and numerical radii
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] Remarks on conjugation and antilinear operators and their numerical range2019

    • Author(s)
      M. Cho
    • Organizer
      順序を用いた作用素の構造研究と関連する話題
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] Approximate point spectra of m-complex symmetric operators and others2019

    • Author(s)
      M. Cho
    • Organizer
      順序を用いた作用素の構造研究と関連する話題
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On n-normal operators and others2019

    • Author(s)
      M. Cho
    • Organizer
      KOTAC2019
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] Numerical ranges of a Banach space operator2019

    • Author(s)
      M. Cho
    • Organizer
      KOTAC2019
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] Linear operators and Conjugations on a Banach space2018

    • Author(s)
      M. Cho and H. Motoyoshi
    • Organizer
      作用素平均を利用した作用素の構造解析の研究と関連する話題
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On n-normal operators2018

    • Author(s)
      M. Cho
    • Organizer
      作用素平均を利用した作用素の構造解析の研究と関連する話題
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] Linear operators on a Banach space2018

    • Author(s)
      M. Cho
    • Organizer
      KOTAC 2018
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] 線形作用素の conjugation に係る話題2018

    • Author(s)
      M. Cho
    • Organizer
      第57回実函数論・函数解析学合同シンポジウム
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On class p-wA(s,t) operators2018

    • Author(s)
      K. Tanahashi and M. Cho
    • Organizer
      作用素平均を利用した作用素の構造解析の研究と関連する話題
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On conjugation and linear operator II2017

    • Author(s)
      M. Cho
    • Organizer
      BANACH空間に基づく技法による作用素論の最近の研究と関連する話題
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] Furuta's inequality and p-wA(s,t) operators2017

    • Author(s)
      M. Cho
    • Organizer
      International Workshop of Operator Theory and Applications 2017
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] m-isometric and m-symmetric operators2017

    • Author(s)
      M. Cho
    • Organizer
      関東作用素論研究会
    • Place of Presentation
      東京理科大学
    • Year and Date
      2017-01-21
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] 種々の不等式について2017

    • Author(s)
      M. Cho
    • Organizer
      上越地区高等学校数学教育研究会
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] 線形作用素と Conjugation2017

    • Author(s)
      M. Cho
    • Organizer
      作用素論・作用素環論研究集会
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On conjugation and linear operator2016

    • Author(s)
      M. Cho
    • Organizer
      作用素論に基づく量子情報理論の幾何学的構造に関する研究と関連する話題
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2016-11-09
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On ∞-complex symmetric operators2016

    • Author(s)
      M. Cho
    • Organizer
      SWOT 2016
    • Place of Presentation
      クラコフ
    • Year and Date
      2016-07-06
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On m -isometric operators2015

    • Author(s)
      M. Cho
    • Organizer
      順序と幾何による作用素の構造研究と関連する話題
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2015-11-09
    • Data Source
      KAKENHI-PROJECT-15K04910
  • [Presentation] On m-isometric operators III2012

    • Author(s)
      長宗雄
    • Organizer
      仙台作用素環研究集会
    • Place of Presentation
      東北大学
    • Year and Date
      2012-01-23
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] ある作用素方程式についてI2011

    • Author(s)
      長宗雄
    • Organizer
      仙台作用素環研究集会
    • Year and Date
      2011-01-17
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] On m-isometric operators III2011

    • Author(s)
      長宗雄
    • Organizer
      仙台作用素環研究集会
    • Year and Date
      2011-01-23
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] m-isometric operators2011

    • Author(s)
      長宗雄(代表)
    • Organizer
      数理解析研究所研究集会
    • Place of Presentation
      京都大学
    • Year and Date
      2011-11-14
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Presentation] m-isometric operator s2011

    • Author(s)
      長宗雄
    • Organizer
      数理解析研究所研究集会
    • Place of Presentation
      京都大学
    • Year and Date
      2011-11-14
    • Data Source
      KAKENHI-PROJECT-20540178
  • [Presentation] On m-isometric operators I2011

    • Author(s)
      長宗雄
    • Organizer
      仙台作用素環研究集会
    • Year and Date
      2011-10-24
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] On m-isometric operators2011

    • Author(s)
      長宗雄
    • Organizer
      仙台作用素環研究集会
    • Place of Presentation
      東北大学
    • Year and Date
      2011-10-24
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] On m-isometric operators2011

    • Author(s)
      長宗雄
    • Organizer
      研究集会「スペクトル、数域などの幾何学的特性量を用いた作用素の構造研究」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2011-11-14
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] On m-isometric operators I2011

    • Author(s)
      長宗雄
    • Organizer
      スペクトル、数域などの幾何学的特性量を用いた作用素の構造研究
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2011-11-14
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] On m-isometric operators2011

    • Author(s)
      長宗雄
    • Place of Presentation
      ソウル大学
    • Year and Date
      2011-06-13
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] ある作用素方程式についてII2011

    • Author(s)
      長宗雄
    • Organizer
      仙台作川素環研究集会
    • Place of Presentation
      東北大学
    • Year and Date
      2011-01-17
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] ある作用素方程式について2010

    • Author(s)
      長宗雄
    • Organizer
      仙台作川素環研究集会
    • Place of Presentation
      東北大学
    • Year and Date
      2010-11-30
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] ある作用素方程式について2010

    • Author(s)
      長宗雄
    • Organizer
      仙台作用素環研究集会
    • Year and Date
      2010-11-30
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] semi-hyponormal作用素はconvexoidか?2009

    • Author(s)
      長宗雄
    • Organizer
      研究集会「作川素論における非可換解析学の展望」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2009-10-28
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] semi-hyponormal作用素はconvexoidか?2009

    • Author(s)
      長宗雄
    • Organizer
      研究集会「作用素論における非可換解析学の展望」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2009-10-28
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] On Xia spectrum2008

    • Author(s)
      M. Cho
    • Organizer
      Kyoto University
    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] p-hyponormal作用素の構造定理について2008

    • Author(s)
      長宗雄古谷正
    • Organizer
      研究集会「作用素論への幾何学の応用」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2008-10-31
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] Xia spectrumについて2008

    • Author(s)
      長 宗雄・古谷 正・棚橋浩太郎
    • Organizer
      線形作用素に関連する不等式とその応用
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2008-01-30
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] p-Hyponormal作用素の構造定理について2008

    • Author(s)
      長 宗雄
    • Organizer
      作用素論への幾何学の応用
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2008-10-31
    • Data Source
      KAKENHI-PROJECT-20540192
  • [Presentation] Xia spectrumについて2008

    • Author(s)
      長 宗雄・古谷 正・棚橋 浩太郎
    • Organizer
      線形作用素に関連する不等式とその応用
    • Place of Presentation
      京都大学数理解析研究j所
    • Year and Date
      2008-01-30
    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] On Xia spectrum of operators2007

    • Author(s)
      M. Cho
    • Organizer
      Seoul National University
    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] Spectrum and principal functions of p-hyponormal operators2006

    • Author(s)
      M. Cho
    • Organizer
      IWOTA2006, Seoul National University Seoul
    • Place of Presentation
      Korea
    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] Numerical ranges of operators2006

    • Author(s)
      M. Cho
    • Organizer
      Seoul National University
    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] Principal functions of p-hyponormal operators2005

    • Author(s)
      M. Cho
    • Organizer
      Inter. Operator Algebras and Operator Theory Symposium
    • Place of Presentation
      Xi'an, China
    • Year and Date
      2005-07-23
    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540176
  • [Presentation] On m -isometric operators

    • Author(s)
      M. Cho
    • Organizer
      Operators on Banach spaces
    • Place of Presentation
      スペイン・Castro Urdiales
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Presentation] An example of an m-isometry

    • Author(s)
      長 宗雄、太田昇一、棚橋浩太朗
    • Organizer
      研究集会名「幾何学及び確率論的手法による作用素の構造解析の研究」
    • Place of Presentation
      京都大学数理解析研究所
    • Data Source
      KAKENHI-PROJECT-24540195
  • [Presentation] Spectral properties of m-isometric operators

    • Author(s)
      長 宗雄
    • Organizer
      太原理工大学理学部
    • Place of Presentation
      中国・太原理工大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-24540195
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