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A study on trace-rank inequality concerned with module structure of complex Hardy spaces

Research Project

Project/Area Number 21740099
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Basic analysis
Research InstitutionShimane University

Principal Investigator

SETO Michio  Shimane University, 総合理工学部, 講師 (30398953)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords関数解析 / ハーディ空間論 / 作用素論 / 多変数作用素論 / 関数解析学 / 関数論 / ハーディ空間 / 複素解析学 / 多変数作用論
Research Abstract

(1) Since Hardy spaces can be seen as Hilbert modules over the polynomial ring, a Hilbert function can be defined for every submodule. We succeeded in giving an explicit formula for Hilbert functions of submodules in a certain class.
(2) As a sequel of (1), we introduced perturbation theory for linear operators to our research field. As a result, we have obtained a new viewpoint, which can be applied to other Hilbert function spaces.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (13 results)

All 2011 2010 2009 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (7 results) Remarks (1 results)

  • [Journal Article] A perturbation theory for core operators of Hilbert-Schmidt submodules2011

    • Author(s)
      Michio Seto
    • Journal Title

      Integral Equations and Operator Theory

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Infinite sequences of inner functions and submodules in $H^2({\mathbb D}^2)$}2009

    • Author(s)
      瀬戸道生
    • Journal Title

      Journal of Operator Theory 61 no.1

      Pages: 75-86

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Common invariant subspaces of two doubly commuting operators on $l^2\otimes {\mathbb C}^2$2009

    • Author(s)
      中路貴彦, 瀬戸道生
    • Journal Title

      Nihonkai Mathematical Journal 20 no.2

      Pages: 127-137

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Common invariant subspaces of two doubly commuting operators on $1^2\otimes{\mathbb C}^2$2009

    • Author(s)
      Takahiko NAKAZI, Michio SETO
    • Journal Title

      NIHONKAI MATHEMATICAL JOURNAL Vol.20, No.2

      Pages: 127-137

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A perturbation theory for core operators of Hilbert-Schmidt submodules

    • Author(s)
      瀬戸道生
    • Journal Title

      Integral Equations and Operator Theory 掲載確定

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Presentation] A perturbation theory for defect operators on Hilbert function spaces2010

    • Author(s)
      瀬戸道生
    • Organizer
      関数空間セミナー
    • Place of Presentation
      北海道大学理学部
    • Year and Date
      2010-12-23
    • Related Report
      2010 Final Research Report
  • [Presentation] A perturbation theory for defect operators on Hilbert function spaces2010

    • Author(s)
      瀬戸道生
    • Organizer
      第19回関数空間セミナー
    • Place of Presentation
      北海道大学理学部
    • Year and Date
      2010-12-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 再生核ヒルベルト空間から定まるdefect作用素について2010

    • Author(s)
      瀬戸道生
    • Organizer
      作用素論・作用素環論研究集会
    • Place of Presentation
      東京理科大学森戸記念館
    • Year and Date
      2010-11-13
    • Related Report
      2010 Final Research Report
  • [Presentation] 再生核ヒルベルト空間から定まるdefect作用素について2010

    • Author(s)
      瀬戸道生
    • Organizer
      作用素論・作用素環論研究集会
    • Place of Presentation
      東京理科大学 森戸記念館
    • Year and Date
      2010-11-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] 再生核から定まる作用素の摂動について2010

    • Author(s)
      瀬戸道生
    • Organizer
      作用素論における非可換構造の研究とその応用
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2010-10-28
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] Hilbert functions and defect operators of submodules in the Hardy space over the bidisk2009

    • Author(s)
      Michio Seto, Module ranks
    • Organizer
      2009 Joint Meeting of the KMS and the AMS
    • Place of Presentation
      Ewha Womans University (Seoul, Korea)
    • Year and Date
      2009-12-17
    • Related Report
      2010 Final Research Report
  • [Presentation] Module ranks, Hilbert functions and defect operators of submodules in the Hardy space over the bidisk2009

    • Author(s)
      Michio Seto
    • Organizer
      2009 Joint Meeting of the KMS and the AMS
    • Place of Presentation
      Ewha Womans University(Seoul, Korea)
    • Year and Date
      2009-12-17
    • Related Report
      2009 Annual Research Report
  • [Remarks] ホームページ等

    • Related Report
      2010 Final Research Report

URL: 

Published: 2009-04-01   Modified: 2016-04-21  

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