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The study of operator functions and Applications to orthogonal polynomials

Research Project

Project/Area Number 17540164
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Basic analysis
Research InstitutionShimane University (2006-2008)
Fukuoka University of Education (2005)

Principal Investigator

UCHIYAMA Mitsuru  Shimane University, 総合理工学部, 教授 (60112273)

Co-Investigator(Kenkyū-buntansha) 幸崎 秀樹  九州大学, 大学院・数理学研究科, 教授 (20186612)
綿谷 安男  九州大学, 大学院・数理学研究科, 教授 (00175077)
原 卓哉  福岡教育大学, 教育学部, 准教授 (50263984)
Co-Investigator(Renkei-kenkyūsha) KOSAKI Hideki  九州大学大学院, 数理学研究科, 教授 (20186612)
WATATANI Yasuo  九州大学大学院, 数理学研究科, 教授 (00175077)
HARA Takuya  福岡教育大学, 教育学部, 准教授 (50263984)
Project Period (FY) 2005 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,750,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2005: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywords作用素関数 / 作用素順序 / 固有値 / 凹関数 / Pick関数 / 作用素不等式 / 直交多項式 / Majorization / majorization
Research Abstract

作用素単調関数の逆関数全体を初めて考察し、積について閉じていることを証明した。そして、二つの関数に関するMajorization の概念を導入して 作用素不等式を統一的に一般化した。このMajorization の概念は古典的な二つの数列に関するMajorizationの概念の拡張であることを示し、実解のみを持つ多項式、特に直交多項式系に応用した。また、凹関数による行列値関数の固有値分布についての既存の結果を大きく拡張した。

Report

(5 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (39 results)

All 2008 2007 2006 2005 Other

All Journal Article (20 results) (of which Peer Reviewed: 14 results) Presentation (18 results) Remarks (1 results)

  • [Journal Article] A New Majorization Induced by Matrix Order2008

    • Author(s)
      内山 充
    • Journal Title

      Operator Theory: Advance and Applications 187

      Pages: 211-216

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 、A new majorization between functions, polynomials and inequalitiesII2008

    • Author(s)
      内山 充
    • Journal Title

      J.Math.Soc.Japan .Vol.60,No.1

      Pages: 291-310

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] On infinite divisibility of positive definite functions arising from operator means2008

    • Author(s)
      幸崎 秀樹
    • Journal Title

      J. Funct. Anal. Vol.254 no. 1

      Pages: 84-108

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A New Majorization Induced by Matrix Order2008

    • Author(s)
      M. Uchiyama
    • Journal Title

      Operator Theory : Advance and Applicat ions 187

      Pages: 211216-211216

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new majorization between functions, polynomials, and operator inequalities II.2008

    • Author(s)
      Mitsuru Uchiyama
    • Journal Title

      J. Math. Soc. Japan 60

      Pages: 291-310

    • NAID

      10024331603

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A matrix subadditivity inequality for f(A+B) and f(A)+f(B)2007

    • Author(s)
      J. C. Bourin, 内山 充
    • Journal Title

      Linear Algebra Appl. 423 no. 2-3

      Pages: 512-518

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mean matrices and infinite divisibility2007

    • Author(s)
      R. Bhatia, 幸崎 秀樹
    • Journal Title

      Linear Algebra Appl. Vol. 424 no.1

      Pages: 36-54

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Matrix functions and unitarily invariant norms2007

    • Author(s)
      内山 充
    • Journal Title

      京大数理研講究録 Vol. 1535

      Pages: 112-118

    • Related Report
      2008 Final Research Report
  • [Journal Article] Exotic indecomposable systems of four subspaces in a Hilbert space2007

    • Author(s)
      榎本 正敏、綿谷 安男
    • Journal Title

      Integral Equations Operator Theory Vol.59, no. 2

      Pages: 149-164

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A matrix subadditivity inequality for f(A+B)and f(A)+f(B)2007

    • Author(s)
      J. C. Bourin, M. Uchiyama
    • Journal Title

      Linear Algebra Appl. 423

      Pages: 512-518

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Matrix functions and unitarily invariant norms2007

    • Author(s)
      Mitsuru Uchiyama
    • Journal Title

      数理解析研究所講究録 1535

      Pages: 112-118

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 、A new majorization between functions, polynomials, and operator inequalities2006

    • Author(s)
      内山 充
    • Journal Title

      J. Functional Analysis 231

      Pages: 221-244

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] On the mean of operators.2006

    • Author(s)
      幸崎 秀樹
    • Journal Title

      数学 Vol. 58, no. 2

      Pages: 165-182

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] On intersections of domains of unbounded positive operators2006

    • Author(s)
      幸崎 秀樹
    • Journal Title

      Kyushu J. Math. Vol. 60, no. 1

      Pages: 3-25

    • NAID

      130000063153

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A new majorization between functions polynomials, and operator inequalities2006

    • Author(s)
      Mitsuru Uchiyama
    • Journal Title

      J. of Functional Analysis 231

      Pages: 221-244

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A new majorization between functions, polynomials, and operator inequalities2006

    • Author(s)
      Mitsuru Uchiyama
    • Journal Title

      Journal of Functional Analysis 231

      Pages: 221-244

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Subadditivity of eigenvalue sums2005

    • Author(s)
      内山 充
    • Journal Title

      Proc. A.M.S. 134,No5

      Pages: 1405-1412

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Operator monotone functions and operator inequalities2005

    • Author(s)
      内山 充
    • Journal Title

      SugakuExpositions 18, no. 1

      Pages: 39-52

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] The family of inverses of operator monotone functions2005

    • Author(s)
      内山 充
    • Journal Title

      京大数理研講究録 Vol.1458

      Pages: 156-170

    • Related Report
      2008 Final Research Report
  • [Journal Article] Operator monotone functions and operator inequalities2005

    • Author(s)
      Mitsuru Uchiyama
    • Journal Title

      Sugaku Expositions (American Mathematical Society) 18・1

      Pages: 39-52

    • Related Report
      2005 Annual Research Report
  • [Presentation] Majorization and some operator monotone functions2008

    • Author(s)
      内山 充
    • Organizer
      「関数空間セミナー」
    • Place of Presentation
      東京理科大学
    • Year and Date
      2008-12-25
    • Related Report
      2008 Final Research Report
  • [Presentation] Majori zat ion and some operator monotone functi ons2008

    • Author(s)
      M. Uchiyama
    • Organizer
      17回 関数空間セミナー
    • Place of Presentation
      東京理科大学
    • Year and Date
      2008-12-25
    • Related Report
      2008 Annual Research Report
  • [Presentation] A New Majorization fetween functi ons2008

    • Author(s)
      M. Uchiyama
    • Organizer
      Internat inal Linear Algebra Society
    • Place of Presentation
      Cancun, Mexico
    • Year and Date
      2008-06-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] A New Majorization between functions2008

    • Author(s)
      内山 充
    • Organizer
      International Linear Algebra Society
    • Place of Presentation
      Westin hotel at Cancun, Mexico.
    • Year and Date
      2008-06-15
    • Related Report
      2008 Final Research Report
  • [Presentation] 行列関数の固有値2008

    • Author(s)
      内山 充
    • Organizer
      日本数学会
    • Place of Presentation
      近畿大学本部キャンパス
    • Year and Date
      2008-03-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] 関数のMajorizationと作用素不等式2008

    • Author(s)
      内山 充
    • Organizer
      日本数学会
    • Place of Presentation
      近畿大学本部キャンパス
    • Year and Date
      2008-03-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] 行列関数の固有値和2008

    • Author(s)
      内山 充
    • Organizer
      日本数学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-24
    • Related Report
      2008 Final Research Report
  • [Presentation] 関数のMajorization と作用素不等式2008

    • Author(s)
      内山 充
    • Organizer
      日本数学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-24
    • Related Report
      2008 Final Research Report
  • [Presentation] Majorization と作用素不等式2008

    • Author(s)
      内山 充
    • Organizer
      研究集会「線形作用素に関連する不等式とその応用
    • Place of Presentation
      京大・数理研
    • Year and Date
      2008-02-01
    • Related Report
      2008 Final Research Report
  • [Presentation] Majorizationと作用素不等式2008

    • Author(s)
      内山 充
    • Organizer
      京都大学・数理解析研究所
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2008-01-30
    • Related Report
      2007 Annual Research Report
  • [Presentation] 関数の Majorization2007

    • Author(s)
      内山 充
    • Organizer
      「関数空間セミナー」
    • Place of Presentation
      東京理科大学
    • Year and Date
      2007-12-24
    • Related Report
      2008 Final Research Report
  • [Presentation] 作用素単調関数の逆関数2007

    • Author(s)
      内山 充
    • Organizer
      「作用素論、作用素環論研究集会」
    • Place of Presentation
      東北大学
    • Related Report
      2008 Final Research Report
  • [Presentation] A new majorization and operator inequalities2006

    • Author(s)
      内山 充
    • Organizer
      InternationalWorkshop on Operator Theory and Applications
    • Place of Presentation
      Seoul National University, Korea
    • Year and Date
      2006-08-03
    • Related Report
      2008 Final Research Report
  • [Presentation] Operator monotone functions and operator inequalities2006

    • Author(s)
      内山 充
    • Organizer
      International conference ``Operator Theory and its applications''
    • Place of Presentation
      Kyungpook National University, Korea
    • Related Report
      2008 Final Research Report
  • [Presentation] Matrix functions and unitarily invariant norms2006

    • Author(s)
      内山 充
    • Organizer
      研究集会「線形作用素の理論と応用に関する、最近の発展」
    • Place of Presentation
      京大・数理研
    • Related Report
      2008 Final Research Report
  • [Presentation] 固有値の劣加法性2006

    • Author(s)
      内山 充
    • Organizer
      日本数学
    • Place of Presentation
      大阪市立大学
    • Related Report
      2008 Final Research Report
  • [Presentation] The family of inverses of operator monotone functions and polynomials2005

    • Author(s)
      内山 充
    • Organizer
      International Conference Topics in Functional and Numerical Analysis
    • Place of Presentation
      Indian Institute of Technology at Bombay, India
    • Year and Date
      2005-12-08
    • Related Report
      2008 Final Research Report
  • [Presentation] The family of inverses of operator monotone functions2005

    • Author(s)
      内山 充
    • Organizer
      研究集会 「線形作用素論と応用に関する最近の発展」
    • Place of Presentation
      京大・数理研
    • Related Report
      2008 Final Research Report
  • [Remarks] ホームページ等

    • Related Report
      2008 Final Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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