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Izuchi Kouhei  泉池 耕平

ORCIDConnect your ORCID iD *help
… Alternative Names

IZUCHI Kouhei  泉池 耕平

泉池 耕平  イズチ コウヘイ

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Researcher Number 90451434
Other IDs
Affiliation (Current) 2025: 山口大学, 教育学部, 准教授
Affiliation (based on the past Project Information) *help 2016 – 2021: 山口大学, 教育学部, 准教授
2011 – 2015: 山口大学, 教育学部, 講師
2009: 北大, 理学(系)研究科(研究院)
2008: Hokkaido University, 大学院・理学研究院, 非常勤講師
Review Section/Research Field
Principal Investigator
Basic Section 12010:Basic analysis-related / Basic analysis
Except Principal Investigator
Basic analysis
Keywords
Principal Investigator
不変部分空間 / 複素解析 / 関数解析 / ハーディ空間 / 巡回ベクトル / 正則関数 / ヒルベルト空間 / core作用素 / Sega1-Bargmann空間 / 逆シフト不変部分空間 / Hardy空間 … More
Except Principal Investigator
… More 不変部分空間 / 有界解析関数空間 / 弧状連結成分 / 荷重合成作用素 / 内部関数 / 閉イデアル / ハーデイ空間 / 有界解析関数 / 解析関数空間 / バーグマン空間 / 不変部分空間の階数 / トエプリッツ作用素 / 逆不変部分空間 / ダグラス環 / デスク環 / テープリッツ作用素 / 2変数ハーデイ空間 / ディスク環 / Toeplitz作用素 / 不変部分空間のランク / 2変数Hardy空間 / 国際情報交換:韓国 / 国際情報交換:中国 / 国際研究者交流:フィンランド / 合成作用素の連結成分 / 多変数ハーデイ空間 / 本質作用素ノルム位相 / 作用素ノルム位相 / 有界調和関数空間 / 極大イデアル空間 / 界解析関数 / バナッハ環 / 合成作用素 / クロス交換子 / 複素解析 / 関数解析 Less
  • Research Projects

    (5 results)
  • Research Products

    (124 results)
  • Co-Researchers

    (4 People)
  •  Cyclic vectors in analytic Hilbert spacesPrincipal Investigator

    • Principal Investigator
      Izuchi Kouhei
    • Project Period (FY)
      2018 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12010:Basic analysis-related
    • Research Institution
      Yamaguchi University
  •  有界解析関数の研究とその解析関数空間上の作用素論への応用

    • Principal Investigator
      泉池 敬司
    • Project Period (FY)
      2015 – 2018
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Niigata University
  •  Study of operators on spaces of analytic functions and the space of bounded analytic functions

    • Principal Investigator
      IZUCHI Keiji
    • Project Period (FY)
      2012 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Niigata University
  •  Study of bounded analytic functions and associated operators on spaces of analytic functions

    • Principal Investigator
      IZUCHI Keiji
    • Project Period (FY)
      2009 – 2011
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Niigata University
  •  解析関数空間の不変部分空間の構造及び性質についてPrincipal Investigator

    • Principal Investigator
      泉池 耕平
    • Project Period (FY)
      2008 – 2010
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Basic analysis
    • Research Institution
      Hokkaido University

All 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 Other

All Journal Article Presentation

  • [Journal Article] Weighted composition operators whose ranges contain the disk algebra Ⅱ2018

    • Author(s)
      Izuchi Kei Ji、Izuchi Kou Hei、Izuchi Yuko
    • Journal Title

      Bull. Korean Math. Soc.

      Volume: 55 Pages: 507-514

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Ranks of cross commutators and unitary module maps2018

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi, Yuko Izuchi
    • Journal Title

      Comput. Methods Funct. Theory

      Volume: 印刷中 Issue: 3 Pages: 545-566

    • DOI

      10.1007/s40315-018-0239-1

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04905, KAKENHI-PROJECT-15K04895
  • [Journal Article] Path connected components in the space of weighted composition operators on the QA space2018

    • Author(s)
      Keiji Izuchi, Yuko Izuchi
    • Journal Title

      Studia Math.

      Volume: 印刷中 Issue: 3 Pages: 251-267

    • DOI

      10.4064/sm170209-18-8

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04905, KAKENHI-PROJECT-15K04895
  • [Journal Article] Path Connected Components in the Spaces of Weighted Composition Operators with the Strong Operator Topology Ⅱ2018

    • Author(s)
      Izuchi Kei Ji、Izuchi Yuko
    • Journal Title

      Journal of the Indian Mathematical Society

      Volume: 85 Issue: 1-2 Pages: 92-92

    • DOI

      10.18311/jims/2018/16577

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Sequences of Powers of Toeplitz Operators on the Hardy Space2018

    • Author(s)
      Chen Yong、Izuchi Kei Ji、Lee Young Joo
    • Journal Title

      Integral Equations and Operator Theory

      Volume: 90 Issue: 6

    • DOI

      10.1007/s00020-018-2495-x

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] A Coburn type theorem on the Hardy space of the bidisk2018

    • Author(s)
      Chen Yong、Izuchi Kei Ji、Lee Young Joo
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 466 Issue: 1 Pages: 1043-1059

    • DOI

      10.1016/j.jmaa.2018.06.034

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Hilbert-Schmidtness of some finitely generated submodules in H^2(D)2018

    • Author(s)
      Luo Shuaibing、Izuchi Kei Ji、Yang Rongwei
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 465 Issue: 1 Pages: 531-546

    • DOI

      10.1016/j.jmaa.2018.05.021

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Adjoint of the Toeplitz operator with the singular inner function.2017

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 452 Issue: 2 Pages: 906-911

    • DOI

      10.1016/j.jmaa.2017.03.001

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04895, KAKENHI-PROJECT-15K04905
  • [Journal Article] Splitting invariant subspaces in the Hardy space over the bidisk.2017

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko
    • Journal Title

      J. Australian Math. Soc.

      Volume: 102 Issue: 2 Pages: 205-223

    • DOI

      10.1017/s1446788716000203

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04895, KAKENHI-PROJECT-15K04905
  • [Journal Article] Fredholmness of fringe operators over the bidisk2017

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi, Yuko Izuchi
    • Journal Title

      Archiv der Math.

      Volume: 109 Issue: 3 Pages: 255-262

    • DOI

      10.1007/s00013-017-1075-7

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04905, KAKENHI-PROJECT-15K04895
  • [Journal Article] Rank of finite Rudin type backward shift invariant subspaces over the bidisk2017

    • Author(s)
      Kei Ji Izuchi, Kou Hei Izuchi, Yuko Izuchi
    • Journal Title

      Complex Anal. Oper. Theory

      Volume: 11 Issue: 3 Pages: 675-705

    • DOI

      10.1007/s11785-015-0471-x

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04905, KAKENHI-PROJECT-15K04895
  • [Journal Article] Kernels of Toeplitz operators on the Hardy space over the bidisk.2017

    • Author(s)
      Chen, Yong; .Izuchi, Kei Ji; Lee, Young Joo
    • Journal Title

      J. Funct. Anal.

      Volume: 272 Issue: 9 Pages: 3869-3903

    • DOI

      10.1016/j.jfa.2017.01.002

    • Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895, KAKENHI-PROJECT-15K04905
  • [Journal Article] Fredholm indices of some fringe operators over the bidisk2017

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi, Yuko Izuchi
    • Journal Title

      Acta Sci. Math. (Szeged)

      Volume: 83 Issue: 3-4 Pages: 441-455

    • DOI

      10.14232/actasm-017-012-6

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04905, KAKENHI-PROJECT-15K04895
  • [Journal Article] One dimensional perturbation of invariant subspaces in the Hardy space over the bidisk I2017

    • Author(s)
      Izuchi Kei Ji、Izuchi Kou Hei、Izuchi Yuko
    • Journal Title

      Nihonkai Math. J.

      Volume: 28 Pages: 31-41

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] One dimensional perturbation of invariant subspaces in the Hardy space over the bidisk Ⅱ2017

    • Author(s)
      Izuchi Kei Ji、Izuchi Kou Hei、Izuchi Yuko
    • Journal Title

      Nihonkai Math. J.

      Volume: 28 Pages: 1-29

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Cyclicity of reproducing kernels in weighted Hardy spaces over the bidisk.2017

    • Author(s)
      Izuchi, Kou Hei
    • Journal Title

      J. Funct. Anal.

      Volume: 272 Issue: 2 Pages: 546-558

    • DOI

      10.1016/j.jfa.2016.09.025

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Cyclic vectors in Fock-type spaces of single variable2017

    • Author(s)
      Huang Hansong、Izuchi Kou Hei
    • Journal Title

      Nihonkai Math. J.

      Volume: 28 Pages: 117-124

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Invariant subspaces having two side frames over the bidisk2016

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 436 Pages: 1102-1120

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Invariant subspaces having two side frames over the bidisk.2016

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko
    • Journal Title

      J. Math. Anal Appl.

      Volume: 436 Issue: 2 Pages: 1102-1120

    • DOI

      10.1016/j.jmaa.2015.11.080

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Zero based invariant subspaces and fringe operators over the bidisk.2016

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko
    • Journal Title

      J. Korean Math. Soc.

      Volume: 53 Issue: 4 Pages: 847-868

    • DOI

      10.4134/jkms.j150298

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04895, KAKENHI-PROJECT-15K04905
  • [Journal Article] Gleason parts and closed ideals in Douglas algebras.2016

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Yuko
    • Journal Title

      Computational Methods Function Theory

      Volume: 16 Issue: 2 Pages: 243-263

    • DOI

      10.1007/s40315-015-0136-9

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-15K04895, KAKENHI-PROJECT-15K04905
  • [Journal Article] Weighted composition operators between Hilbert spaces of analytic functions in the operator norm and Hilbert-Schmidt norm topologies2015

    • Author(s)
      Hosokawa, Takuya; Izuchi, Kei Ji; Ohno, Shûichi
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 421 Pages: 1546-1558

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Weighted composition operators whose ranges contain the disk algebra2015

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Kou Hei; Izuchi, Yuko
    • Journal Title

      Complex Var. Elliptic Equ.

      Volume: 60 Pages: 938-944

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Weighted composition operators between Hilbert spaces of analytic functions in the operator norm and Hilbert-Schmidt norm topologies.2015

    • Author(s)
      Takuya Hosokawa, Kei Ji Izuchi, Shuichi Ohno
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 421 Pages: 1546-1558

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Inner functions and weighted composition operators on the Hardy-Hilbert space with the unbounded weights2015

    • Author(s)
      Kei Ji Izuchi, Kou Hei Izuchi and Yuko Izuchi
    • Journal Title

      Annals of Functional Analysis

      Volume: 6 Issue: 2 Pages: 104-115

    • DOI

      10.15352/afa/06-2-10

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24540190, KAKENHI-PROJECT-15K04895
  • [Journal Article] Topological properties of path connected components in spaces of weighted composition operators into L ∞2015

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Yuko; Ohno, Shûichi
    • Journal Title

      Rocky Mountain J. Math.

      Volume: 45 Pages: 941-962

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Journal Article] Inner functions and weighted composition operators on the Hardy-Hilbert space with the unbounded weights.2015

    • Author(s)
      Kei Ji Izuchi, Kou Hei Izuchi, Yuko Izuchi
    • Journal Title

      Ann. Funct. Anal.

      Volume: 6 Pages: 104-115

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Path-connected components in weighted composition operators on the disk algebra with the essential operator norm2015

    • Author(s)
      Izuchi, Kei Ji; Izuchi, Yuko
    • Journal Title

      Math. Proc. R. Ir. Acad.

      Volume: 115A Issue: 1 Pages: 1-5

    • DOI

      10.3318/pria.2015.115.5

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04895, KAKENHI-PROJECT-15K04905
  • [Journal Article] Boundary vs. interior conditions associated with weighted composition operators.2014

    • Author(s)
      Kei Ji Izuchi, Yuko Izuchi, Shuichi Ohno
    • Journal Title

      Cent. Eur. J. Math.

      Volume: 12 Pages: 761-777

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Path connected components in weighted composition operators on h∞ and H∞ with the essential operator norm.2014

    • Author(s)
      Kei Ji Izuchi, Yuko Izuchi, Shuichi Ohno
    • Journal Title

      Houston J. Math.

      Volume: 40 Pages: 161-187

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Topological structure of the space of weighted composition operators between different Hardy spaces.2014

    • Author(s)
      Kei Ji Izuchi, Shuichi Ohno
    • Journal Title

      Integral Equations Operator Theory

      Volume: 80 Pages: 153-164

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Non-analytic sets and QC-level sets in the maximal ideal space of H∞ .2013

    • Author(s)
      Kei Ji Izuchi; Yuko Izuchi
    • Journal Title

      Complex Var. Elliptic Equ.

      Volume: 58

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Interpolations for Holder's inequality.2013

    • Author(s)
      Kei Ji Izuchi; Kou Hei Izuchi; Shuichi Ohno
    • Journal Title

      Bull. Korean Math. Soc.

      Volume: 50

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Hardy-Carleson measures and their dual Poisson-Szego transforms.2013

    • Author(s)
      Boo Rim Choe; Kou Hei Izuchi; Hyungwoon Koo
    • Journal Title

      Potential Anal.

      Volume: 38

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Path connected components in weighted composition operators on h∞ and H∞ with the operator norm2013

    • Author(s)
      Kei Ji Izuchi, Yuko Izuchi, Shuichi Ohno
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: 未定

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Mixed invariant subspaces over the bidisk II.2013

    • Author(s)
      Kou Hei Izuchi; Kei Ji Izuchi
    • Journal Title

      Acta Math. Vietnam.

      Volume: 38

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Sums of weighted composition operators on COP.2013

    • Author(s)
      Kei Ji Izuchi; Kou Hei Izuchi; Yuko Izuchi
    • Journal Title

      Glasg. Math. J.

      Volume: 55

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Gleason parts and countably generated closed ideals in H∞.2013

    • Author(s)
      Kei Ji Izuchi; Yuko Izuchi
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: 365

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Path connected components in weighted composition operators on h∞ and H∞ with the essential operator norm2013

    • Author(s)
      Kei Ji Izuchi, Yuko Izuchi, Shuichi Ohno
    • Journal Title

      Houston J. Math.

      Volume: 未定

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Path connected components in weighted composition operators on h∞ and H∞ with the operator norm.2013

    • Author(s)
      Kei Ji Izuchi; Yuko Izuchi; Shuichi Ohno
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: 365 Pages: 3593-3612

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Sums of weighted composition operators on COP2013

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi, Yuko Izuchi
    • Journal Title

      Glasgow Math. J.

      Volume: 55

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Essential norms of linear combinations of composition operators on h∞ .2013

    • Author(s)
      Kei Ji Izuchi; Kou Hei Izuchi
    • Journal Title

      J. Korean Math. Soc.

      Volume: 50

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Gleason parts and countably generated closed ideals in H∞2013

    • Author(s)
      Kei Ji Izuchi, Yuko Izuchi
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: 未定

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Ranks of backward shift invariant subspaces of the Hardy space over the bidisk.2013

    • Author(s)
      Kei Ji Izuchi; Kou Hei Izuchi; Yuko Izuchi
    • Journal Title

      Math. Z.

      Volume: 274

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Ranks of backward shift invariant subspaces of the Hardy space over the bidisk2013

    • Author(s)
      Kei Ji Izuchi, Kou Hei Izuchi, Yuko Izuchi
    • Journal Title

      Math. Zeit.

      Volume: 未定

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] On Mortini's question concerning the level sets on M(H∞) of a certain harmonic function.2013

    • Author(s)
      Kei Ji Izuchi; Yuko Izuchi
    • Journal Title

      Topology Appl.

      Volume: 160 Pages: 1099-1101

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Non-analytic sets and QC-level sets in the maximal ideal space of H∞2013

    • Author(s)
      Keiji Izuchi, Yuko Izuchi
    • Journal Title

      Complex Var. Elliptic Equ.

      Volume: 58

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Sequential properties of the maximal ideal space of H∞ .2013

    • Author(s)
      Keiji Izuchi; Yuko Izuchi
    • Journal Title

      Houston J. Math.

      Volume: 39

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Composition operators induced by analytic maps to the polydisk2012

    • Author(s)
      Keiji Izuchi, Quang Dieu Nguyen, Shuichi Ohno
    • Journal Title

      Canad. J. Math.

      Volume: 64

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Cross commutators on backward shift invariant subspaces over the bidisk II2012

    • Author(s)
      泉池敬司
    • Journal Title

      J.Korean Math.Soc.

      Volume: 49 Pages: 139-151

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Mutually prime sequences of inner functions and the ranks of subspaces over the bidisk2012

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi, Yuko Izuchi
    • Journal Title

      Arch. Math. (Basel)

      Volume: 98

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Wandering subspaces and the Beurling type theorem III2012

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi, Yuko Izuchi
    • Journal Title

      J. Math. Soc. Japan

      Volume: 64

    • NAID

      10030740444

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Cross commutators on backward shift invariant subspaces over the bidisk II2012

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi
    • Journal Title

      J. Korean Math. Soc.

      Volume: 49

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Commutativity in two-variable Jordan blocks on the Hardy space2012

    • Author(s)
      Keiji Izuchi, Kouhei Izuchi
    • Journal Title

      Acta Sci. Math. (Szeged)

      Volume: 78

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Journal Article] Wandering subspaces and quasi-wandering subspaces in the Bergman space2011

    • Author(s)
      泉池耕平
    • Journal Title

      New York J.Math.

      Volume: 17A Pages: 301-305

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Factorization of Blaschke products and ideal theory in H∞2011

    • Author(s)
      泉池敬司
    • Journal Title

      J.Funct.Anal.

      Volume: 260 Pages: 2086-2147

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Mixed invariant subspaces over the bidisk I2011

    • Author(s)
      泉池敬司
    • Journal Title

      Complex Analysis and Operator Theory

      Volume: 5 Issue: 4 Pages: 1003-1030

    • DOI

      10.1007/s11785-009-0042-0

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Weighted composition operators on the space of bounded harmonic functions2011

    • Author(s)
      泉池敬司
    • Journal Title

      Integral Equations Operator Theory

      Volume: 71 Pages: 91-111

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Sums of weighted composition operators on H∞2011

    • Author(s)
      泉池敬司
    • Journal Title

      J.Math.Anal.Appl.

      Volume: 384 Pages: 683-689

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Blaschke products and the rank of backward shift invariant subspaces over the bidisk2011

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Kou Hei ; Izuchi, Yuko
    • Journal Title

      J Funct. Anal

      Volume: 261, no.6 Pages: 1457-1468

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Ranks of invariant subspaces of the Hardy space over the bidisk2011

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Kou Hei ; Izuchi, Yuko
    • Journal Title

      J Reine Angew. Math

      Volume: 659 Pages: 101-139

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Factorization of Blaschke products andideal theory in H∞2011

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Yuko
    • Journal Title

      J Funct. Anal

      Volume: 260, no.7 Pages: 2086-2147

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Weighted composition operators on the space of bounded harmonic functions2011

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Yuko ; Ohno, Shuichi
    • Journal Title

      Integral Equations Operator Theory

      Volume: 71, no.1 Pages: 91-111

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Ranks of invariant subspaces of the Hardy space over the bidisk2011

    • Author(s)
      泉池敬司
    • Journal Title

      J.Reine Angew.Math.

      Volume: 659 Pages: 101-139

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Blaschke products and the rank of backward shift invariant subspaces over the bidisk2011

    • Author(s)
      泉池敬司
    • Journal Title

      J.Funct.Anal.

      Volume: 261 Pages: 1457-1468

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Wandering subspaces and the Beurling type theorem II2010

    • Author(s)
      泉池敬司
    • Journal Title

      New York J.Math.

      Volume: Vol.16 Pages: 489-505

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Wandering subspaces and the Beurling theorem I2010

    • Author(s)
      泉池敬司
    • Journal Title

      Archiv der Mathematik

      Volume: Vol.95 Pages: 439-446

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Wandering subspaces and the Beurling type Theorem I, Arch2010

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Kou Hei ; Izuchi, Yuko
    • Journal Title

      Math.(Basel)

      Volume: 95, no.5 Pages: 439-446

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Ranks of cross commutators on backward shift invariant subspaces over the bidisk2010

    • Author(s)
      泉池敬司
    • Journal Title

      Rocky Mountain J.Math.

      Volume: Vol.40 Pages: 929-942

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Factorization of Blaschke products and primary ideals in H∞2010

    • Author(s)
      泉池敬司
    • Journal Title

      J.Funct.Anal

      Volume: Vol.259 Pages: 975-1013

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Quasi-wandering subspaces in the Bergman space2010

    • Author(s)
      泉池敬司
    • Journal Title

      Integral Equations Operator Theory

      Volume: Vol.67 Pages: 151-161

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Factorization of Blaschke products and primary ideals in H∞2010

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Yuko
    • Journal Title

      J Funct. Anal

      Volume: 259, no.4 Pages: 975-1013

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Ranks of cross commutators on backward shift invariant subspaces over the bidisk2009

    • Author(s)
      Kei Ji Izuchi, Kou Hei Izuchi
    • Journal Title

      Rocky Mountain J. Math (掲載決定)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20740069
  • [Journal Article] Rank-one commutators on invariant subspaces over the bidisk III2009

    • Author(s)
      Kou Hei Izuchi
    • Journal Title

      Hokkaido Math. J. (掲載決定)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20740069
  • [Journal Article] Rank-one cross commutators on backward shift invariant subspaces on the bidisk2009

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Kou Hei
    • Journal Title

      Acta Math Sin.

      Volume: 25, no.5 Pages: 693-714

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Equivalence classes of mixed invariant subspaces over the bidisk2009

    • Author(s)
      Kei Ji Izuchi
    • Journal Title

      Nihonkai Math. J. 20

      Pages: 145-154

    • NAID

      110007605718

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Rank-one cross commutators on backward shift invariant subspaces on the bidisk2009

    • Author(s)
      Kei Ji Izuchi
    • Journal Title

      Acta Mathematica Sinica (Engl. Ser.) 25

      Pages: 693-714

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Gleasonparts and countably generated closed ideals in H∞

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Yuko
    • Volume
      (to appear)
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Wandering subspaces and the Beurling type theorem III

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Kou Hei ; Izuchi, Yuko
    • Journal Title

      J. Math. Soc. Japan

      Volume: (to appear)

    • NAID

      10030740444

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Journal Article] Path connected components in weighted composition operators on h∞

    • Author(s)
      Izuchi, Kei Ji ; Izuchi, Yuko ; Ohno, Shuichi
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: (to appear)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Measure zero Rudin type invariant subspaces and ranks of fringe operators2019

    • Author(s)
      Kou Hei Izuchi
    • Organizer
      Spring Central and Western Joint Sectional Meeting
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03335
  • [Presentation] Studies after the Beurling theorem2018

    • Author(s)
      Izuchi Keiji
    • Organizer
      2018 Jeju International Conference of Honam-Youngnam Mathematical Societies
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Kernels of Hankel operators on the Hardy space over the bidisk2017

    • Author(s)
      Izuchi Keiji
    • Organizer
      Workshop : Hilbert Modules in Analytic Function Spaces
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Cyclic vectors in Fock type spaces in multi-variable case2017

    • Author(s)
      泉池 耕平
    • Organizer
      2017 Conference on Function Algebras
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Kernels of Hankel operators on the Hardy space over the bidisk2017

    • Author(s)
      Izuchi Keiji
    • Organizer
      Workshop: Hilbert Modules in Analytic Function Spaces
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Cyclic vectors in Fock type spaces in multi-variable case2017

    • Author(s)
      泉池耕平
    • Organizer
      2017 Conference on Function Algebras
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Cyclicity of reproducing kernels in weighted Hardy spaces over the bidisk2017

    • Author(s)
      Izuchi Kouhei
    • Organizer
      Workshop : Hilbert Modules in Analytic Function Spaces
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Cyclicity of reproducing kernels in weighted Hardy spaces over the bidisk2017

    • Author(s)
      Izuchi Kouhei
    • Organizer
      Workshop: Hilbert Modules in Analytic Function Spaces
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] 2重単位開円板上の荷重 Hardy 空間における再生核の巡回性について2017

    • Author(s)
      泉池耕平
    • Organizer
      日本数学会年会、函数論分科会
    • Place of Presentation
      首都大学 (東京都八王子市)
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Finite Rudin type invariant subspaces2017

    • Author(s)
      泉池 敬司
    • Organizer
      2017 Conference on Function Algebras
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Finite Rudin type invariant subspaces2017

    • Author(s)
      泉池敬司
    • Organizer
      2017 Conference on Function Algebras
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Composition operators whose ranges contain the disk algebra.2016

    • Author(s)
      Izuchi, Keiji
    • Organizer
      International Conference of the Honam Mathematical Society
    • Place of Presentation
      Chonbuk National University ( Korea, Jeonju )
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Related subjects of Invariant Subspace Problem in the Hardy space.2016

    • Author(s)
      Izuchi, Keiji
    • Organizer
      関数環研究集会
    • Place of Presentation
      茨城大学・工学部 (茨城県日立市)
    • Year and Date
      2016-12-02
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Topological properties of path connected components in spaces of weighted composition operators into L∞.2016

    • Author(s)
      泉池敬司, 泉池佑子, 大野修一
    • Organizer
      日本数学会秋季総合分科会,函数解析学分科会
    • Place of Presentation
      関西大学(大阪府吹田市)
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Cyclicity of reproducing kernels in weighted Hardy spaces over the bidisk.2016

    • Author(s)
      Izuchi, Kou Hei
    • Organizer
      関数環研究集会
    • Place of Presentation
      茨城大学・工学部 (茨城県日立市)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Kernels of Hankel operators on the Hardy space over the bidisk.2016

    • Author(s)
      Izuchi, Kou Hei
    • Organizer
      International Workshop on Function Theory
    • Place of Presentation
      Korea University (Korea, Seoul )
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] On Cowen and Gallardo-Gatierrez's problems concern with the invariant subspace problem.2016

    • Author(s)
      Izuchi, Keiji
    • Organizer
      International Workshop on Function Theory
    • Place of Presentation
      Korea University (Korea, Seoul)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Weighted composition operators whose ranges contain the disk algebra2015

    • Author(s)
      泉池敬司
    • Organizer
      関数環研究集会
    • Place of Presentation
      新潟大学駅南キャンパス「ときめいと」(新潟県新潟市)
    • Year and Date
      2015-12-19
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Weighted Bergman spaces embedded in the Hardy space over the bidisk2015

    • Author(s)
      泉池敬司
    • Organizer
      Workshop: Analytic Function Spaces and Operators on Them
    • Place of Presentation
      精華三亚国際数学フォーラム(中国海南省三亚市)
    • Year and Date
      2015-12-10
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Path connected components in weighted composition operators on thedisk algebra with the essenital operator norm2015

    • Author(s)
      泉池敬司
    • Organizer
      日本数学会秋季総合分科会,函数解析学分科会
    • Place of Presentation
      京都産業大学(京都府京都市)
    • Year and Date
      2015-09-15
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Path connected components in the spaces of weighted composition operators with the strong operator topology I2015

    • Author(s)
      泉池敬司
    • Organizer
      第23回有限無限次元複素解析国際会議
    • Place of Presentation
      九州産業大学(福岡市東区)
    • Year and Date
      2015-08-26
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04895
  • [Presentation] Topological structure of the space of weighted composition operators between different Hardy spaces.2014

    • Author(s)
      泉池敬司, 大野修一
    • Organizer
      日本数学会秋季総合分科会
    • Place of Presentation
      広島大学(広島県・東広島市)
    • Year and Date
      2014-09-27
    • Invited
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Weighted composition operator whose ranges contain the disk algebra.2014

    • Author(s)
      泉池 敬司
    • Organizer
      関数環研究集会
    • Place of Presentation
      早稲田大学(東京都・新宿区)
    • Year and Date
      2014-09-18
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Weighted composition operators on the space of bounded harmonic functions2012

    • Author(s)
      泉池敬司、泉池佑子、大野修一
    • Organizer
      日本数学会
    • Place of Presentation
      東京理科大学
    • Year and Date
      2012-03-27
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Interpolations for Holder inequality2011

    • Author(s)
      泉池耕平
    • Organizer
      The 20th Seminar on Function Spaces
    • Place of Presentation
      北海道大学
    • Year and Date
      2011-12-25
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Gleason部分に関連するの閉イデアルの構造2011

    • Author(s)
      泉池敬司
    • Organizer
      第50回実函数論・函数解析学合同シンポジュウム
    • Place of Presentation
      東京女子大
    • Year and Date
      2011-08-09
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Sequential properties of the maximal ideal space of H∞2011

    • Author(s)
      泉池敬司
    • Organizer
      日本数学会
    • Place of Presentation
      信州大学
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Blaschke products and the rank of backward shift invariant subspaces over the bidisk2011

    • Author(s)
      泉池耕平
    • Organizer
      日本数学会
    • Place of Presentation
      信州大学
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Gleason部分に関連するH(∞)の閉イデアルの構造2011

    • Author(s)
      泉池敬司
    • Organizer
      第50回実函数論・函数解析学合同シンポジュウム
    • Place of Presentation
      東京女子大(招待講演)
    • Year and Date
      2011-08-09
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Blaschke products and the rank of backward shift invariant Subspaces over the bidisk2011

    • Author(s)
      泉池耕平
    • Organizer
      日本数学会
    • Place of Presentation
      信州大学
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Factorization of Blaschke products and primary ideals in H∞2010

    • Author(s)
      泉池敬司
    • Organizer
      日本数学会秋季総合分科会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-09-25
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Factorization of Blaschke products and primary ideals in H∞2010

    • Author(s)
      泉池敬司、泉池佑子
    • Organizer
      日本数学会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-09-25
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Wandering subspaces and the Beurling type theorem2010

    • Author(s)
      泉池敬司
    • Organizer
      The 13^<th> Conference on Real and Complex Analysis in Hiroshima
    • Place of Presentation
      広島大学
    • Year and Date
      2010-12-20
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Wandering subspaces and the Beurling type theorem2010

    • Author(s)
      泉池敬司
    • Organizer
      第19回関数空間セミナー
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-12-25
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Ranks of invariant subspaces of the Hardy space over the bidisk2009

    • Author(s)
      Keiji Izuchi
    • Organizer
      Joint Meeting of the KMS and the AMS
    • Place of Presentation
      梨花女子大、韓国
    • Year and Date
      2009-12-17
    • Data Source
      KAKENHI-PROJECT-21540166
  • [Presentation] Rank-one commutators on invariant subspaces over the bidisk2008

    • Author(s)
      泉池耕平
    • Organizer
      日本数学会、秋季総合分科会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2008-09-27
    • Data Source
      KAKENHI-PROJECT-20740069
  • [Presentation] Path connected components in the space of weighted composition operators on the disk algebra.

    • Author(s)
      泉池敬司; 泉池佑子; 大野修一
    • Organizer
      日本数学会
    • Place of Presentation
      学習院大学、豊島区
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Sums of Weighted Composition Operators on H∞

    • Author(s)
      泉池 敬司, 大野修一
    • Organizer
      日本数学会、函数解析学分科会
    • Place of Presentation
      九州大学
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Weighted Bergman spaces embedded in the Hardy space over the bidisk.

    • Author(s)
      泉池 敬司
    • Organizer
      関数環研究集会
    • Place of Presentation
      クロスパルにいがた生涯学習センター、新潟市
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Interpolations for H¨older’s inequality

    • Author(s)
      泉池 敬司
    • Organizer
      実解析学セミナー 2012
    • Place of Presentation
      茨城大学
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Operator inner functions for Rudin type invariant subspaces over the bidisk.

    • Author(s)
      泉池耕平
    • Organizer
      日本数学会
    • Place of Presentation
      愛媛大学、松山市
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Composition Operators Induced by Analytic Maps to the Polydisk

    • Author(s)
      泉池 敬司. Quang Dieu Nguyen, 大野修一
    • Organizer
      日本数学会、函数解析学分科会
    • Place of Presentation
      京都大学
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] Ranks of invariant and backward shift invariant subspaces of the Hardy space over the bidisk

    • Author(s)
      Keiji Izuchi
    • Organizer
      Topology and Functional Analysis
    • Place of Presentation
      Fudan University、中国
    • Invited
    • Data Source
      KAKENHI-PROJECT-24540164
  • [Presentation] An example of an invariant subspace M such that zM+wM is not closed

    • Author(s)
      泉池 敬司
    • Organizer
      解析学セミナー
    • Place of Presentation
      新潟大学
    • Data Source
      KAKENHI-PROJECT-24540164
  • 1.  IZUCHI Keiji (80120963)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 10 results
  • 2.  OHNO Syuichi (20265367)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 19 results
  • 3.  HATORI Osamu (70156363)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 4.  泉地 敬司
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 120 results

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