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TOYODA Tetsu  豊田 哲

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豊田 哲  トヨダ テツ

Toyoda Tetsu  豊田 哲

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Researcher Number 50599701
Other IDs
Affiliation (Current) 2025: 工学院大学, 教育推進機構 , 教授
Affiliation (based on the past Project Information) *help 2021 – 2023: 工学院大学, 教育推進機構(公私立大学の部局等), 准教授
2018 – 2019: 工学院大学, 教育推進機構(公私立大学の部局等), 准教授
2017: 鈴鹿工業高等専門学校, その他部局等, 准教授
2016: 鈴鹿工業高等専門学校, その他部局等, 講師
Review Section/Research Field
Principal Investigator
Basic Section 11020:Geometry-related / Geometry
Keywords
Principal Investigator
距離空間 / CAT(0)空間 / 非正曲率性 / ビルディング / ポアンカレ不等式 / 距離空間の幾何 / 非線形スペクトルギャップ / 二次距離不等式 / 等長埋め込み
  • Research Projects

    (2 results)
  • Research Products

    (18 results)
  •  非測地的距離空間の非正曲率性についてPrincipal Investigator

    • Principal Investigator
      豊田 哲
    • Project Period (FY)
      2021 – 2025
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 11020:Geometry-related
    • Research Institution
      Kogakuin University
  •  Poincare inequalities and geometry of metric spacesPrincipal Investigator

    • Principal Investigator
      Toyoda Tetsu
    • Project Period (FY)
      2016 – 2019
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Geometry
    • Research Institution
      Kogakuin University
      Suzuka National College of Technology

All 2024 2023 2022 2020 2019 2018 2017 2016

All Journal Article Presentation

  • [Journal Article] A non-geodesic analogue of Reshetnyak’s majorization theorem2023

    • Author(s)
      Toyoda Tetsu
    • Journal Title

      Analysis and Geometry in Metric Spaces

      Volume: 11 Issue: 1

    • DOI

      10.1515/agms-2022-0151

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-21K03254
  • [Journal Article] On a question of Gromov about the Wirtinger inequalities2017

    • Author(s)
      Kondo Takefumi、Toyoda Tetsu、Uehara Takato
    • Journal Title

      Geometriae Dedicata

      Volume: 印刷中 Issue: 1 Pages: 203-214

    • DOI

      10.1007/s10711-017-0284-3

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17602, KAKENHI-PROJECT-16K17617
  • [Presentation] On quadratic metric inequalities that hold true in every CAT(0) space2024

    • Author(s)
      豊田 哲
    • Organizer
      研究集会「測地線及び関連する諸問題」
    • Invited
    • Data Source
      KAKENHI-PROJECT-21K03254
  • [Presentation] The 4-point condition and subsets of CAT(k) spaces2022

    • Author(s)
      Tetsu Toyoda
    • Organizer
      Workshop on Geometry of Spaces with Upper and Lower Curvature Bounds
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K03254
  • [Presentation] 非正曲率距離空間と4点間の不等式2022

    • Author(s)
      豊田哲
    • Organizer
      福岡大学微分幾何研究集会2022
    • Invited
    • Data Source
      KAKENHI-PROJECT-21K03254
  • [Presentation] $Cycl_n (\kappa )$性質について2020

    • Author(s)
      豊田 哲
    • Organizer
      淡路島幾何学研究集会2020
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] 距離空間の非正曲率性を特徴付ける不等式について2019

    • Author(s)
      豊田 哲
    • Organizer
      早稲田双曲幾何幾何学的群論セミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] TLD,TSDな4点とCAT(0)空間の構成2019

    • Author(s)
      豊田哲
    • Organizer
      淡路島幾何学研究集会2019
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] An intrinsic characterization of five points in a CAT(0) space2018

    • Author(s)
      Tetsu Toyoda
    • Organizer
      Rigidity School
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] CAT(0)空間上で成立する不等式について2018

    • Author(s)
      豊田哲
    • Organizer
      Year-End workshop on geometry, topology and related topics in Kagoshima
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] CAT(0)空間の5点部分集合の内在的特徴付け2018

    • Author(s)
      豊田哲
    • Organizer
      淡路島幾何学研究集会2018
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] Gromovの$Cycl_k(0)$条件の一般化とCAT(0)空間の5点部分集合の内在的特徴付け2018

    • Author(s)
      豊田哲
    • Organizer
      日本数学会2018年度年会
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] Gromovの$Cycl_4(0)$条件とCAT(0)空間2018

    • Author(s)
      豊田哲
    • Organizer
      首都大学東京・幾何学セミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] CAT(0)空間上で成立する不等式について2018

    • Author(s)
      豊田哲
    • Organizer
      北九州数理科学セミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] Inequalities implied by the weighted quadruple inequalities2017

    • Author(s)
      豊田哲
    • Organizer
      北九州幾何学研究集会2017
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] 非正曲率性と距離の平方に関する不等式2017

    • Author(s)
      豊田 哲
    • Organizer
      淡路島幾何学研究集会2017
    • Place of Presentation
      淡路島国民宿舎慶野松原荘
    • Year and Date
      2017-01-28
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] 距離と不等式2017

    • Author(s)
      豊田 哲
    • Organizer
      第2回摂南大学数理セミナー
    • Place of Presentation
      摂南大学
    • Year and Date
      2017-01-22
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602
  • [Presentation] 距離空間上のWirtinger不等式について2016

    • Author(s)
      豊田 哲
    • Organizer
      広島幾何学研究集会 2016
    • Place of Presentation
      広島大学
    • Year and Date
      2016-10-07
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17602

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