Researchers Database

Kajiba Shunsuke

    Utsunomiya Campus Liberal Arts Center Senior Assistant Professor
Last Updated :2026/09/02

Researcher Information

Affiliation

    Utsunomiya Campus Liberal Arts Center Senior Assistant Professor

Degree

  • Ph.D(Yokohama National University)

URL

Research funding number

  • 71040284

J-Global ID

Research Interests

  • Nonlinear Functional Analysis   Convex Analysis   不動点理論   

Research Areas

  • Natural sciences / Basic mathematics
  • Natural sciences / Basic analysis

Academic & Professional Experience

  • 2026/04 - Today  Teikyo UniversityLiberal Arts CenterAssistant Professer
  • 2025/04 - Today  Kokushikan UniversitySchool of Science and Engineering
  • 2018/04 - 2026/04  Chiba Reimei High shcool

Research Activity Information

Published Papers

  • Shrinking projection methods with allowable ranges for zero point problems in a Banach space
    T.Ibaraki; S.Kajiba
    Journal of Nonlinear Analysis and Optimization: Theory & Applications 16 (2) 73 - 90 2025 [Refereed]
  • A strong convergence theorem for common fixed points of two nonlinear mappings in Hilbert spaces
    T.Ibaraki; S.Kajiba
    Yokohama Mathematical Journal 70 167 - 181 2024 [Refereed]
  • A weak convergence theorem for common fixed points of two nonlinear mappings in Hilbert spaces
    T.Ibaraki; S.Kajiba; Y.Takeuchi
    Abstract and Applied Analysis 2022 2022 [Refereed]
  • Approximation of a common fixed point of two nonlinear mappings with nonsummable errors in a Banach space
    T. Ibaraki; S.kajiba; Y.Kimura
    Differential Geometry, Algebra and Analysis, Springer Proceedings in Mathematics & Statistics 327 143 - 161 2020 [Refereed]
  • A shrinking projection method for generalized firmly nonexpansive mappings with nonsummable errors
    T. Ibaraki; S. Kajiba
    Josai Mathematical Monographs 11 105 - 120 2018 [Refereed]

MISC

  • 2つの可換な非線形写像の共通不動点への強収束定理
    2274-  71  -79  2024
  • 零点問題における許容範囲を持つ縮小射影法とその応
    京都大学数理解析研究所講究録  2274-  70  -79  2024
  • 2つの可換な非線形写像に関する共通不動点への弱収束定理
    京都大学数理解析研究所講究録  2240-  153  -161  2023
  • 2つの非拡大型非線形写像に関する総和不可能誤差付の共通不動点近似
    京都大学数理解析研究所講究録  2114-  165  -170  2019
  • 一般化された堅非拡大写像に関する総和不可能誤差付の不動点近似
    京都大学数理解析研究所講究録  2065-  87  -93  2018


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