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2010 Fiscal Year Final Research Report

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

Research Project

  • PDF
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
Keywords関数解析 / ハーディ空間論 / 作用素論 / 多変数作用素論
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.

  • Research Products

    (8 results)

All 2010 2009 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (4 results) Remarks (1 results)

  • [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

    • 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

    • 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

    • 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
  • [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
  • [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
  • [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
  • [Remarks] ホームページ等

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Published: 2012-02-13   Modified: 2016-04-21  

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