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The research of quaternionic manifolds by using subamnifold geometry

Research Project

Project/Area Number 18K03272
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 11020:Geometry-related
Research InstitutionKanazawa University

Principal Investigator

Kazuyuki Hasegawa  金沢大学, 学校教育系, 教授 (50349825)

Co-Investigator(Kenkyū-buntansha) 守屋 克洋  筑波大学, 数理物質系, 助教 (50322011)
Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Keywords四元数多様体 / 超複素多様体 / 複素部分多様体 / c-射影構造 / supergravity c-map / rigid c-map / 錐的超複素多様体 / 運動量写像 / 部分多様体
Outline of Final Research Achievements

We give a construction of a hypercomplex manifold from a quaternion manifold (Q/H-correspondence). We also find a construction of a quaternion manifold from a hypercomplex manifold (H/Q-correspondence). As a concrete example, we obtain a hypercomplex Hopf manifold, which does not allow any hyperkahler structures. In particular, as an application of H/Q-correspondence, it is possible to construct a quaternion manifold from a certain type of complex manifold, which follow from the fact that the tangent bundle of this complex manifold has the structure of a quaternion manifold.

Academic Significance and Societal Importance of the Research Achievements

四元数多様体や超複素多様体は重要な研究対象であり,それらの構成は基本的なテーマである.本研究では,超複素運動量写像を用いて四元数多様体から超複素多様体を構成したが,超複素運動量写像の有用性を示したことや古典的な題材であるc-射影構造を活用して点でも学術的意義があると思われる.また,今後は物理学への応用もふまえ,更なる展開を考えていきたい.

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (6 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results)

  • [Int'l Joint Research] University of Hamburg(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Hamburg(ドイツ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] University of Hamburg(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Hamburg(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Hamburg(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ハンブルク大学(ドイツ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] THE H/Q-CORRESPONDENCE AND A GENERALIZATION OF THE SUPERGRAVITY C-MAP2024

    • Author(s)
      V. Cortes AND K. Hasegawa
    • Journal Title

      Tohoku Math. J.

      Volume: 76 Issue: 2

    • DOI

      10.2748/tmj.20221125

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The quaternionic/hypercomplex-correspondence2021

    • Author(s)
      V. Cortes and K.Hasegawa
    • Journal Title

      Osaka J. Math.

      Volume: 58 Pages: 213-238

    • NAID

      120006998393

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023

    • Author(s)
      K. Hasegawa
    • Organizer
      Pure and Applied Differentila Geometry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023

    • Author(s)
      長谷川和志
    • Organizer
      日本数学会秋季総合分科会幾何学分科会
    • Related Report
      2023 Annual Research Report
  • [Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023

    • Author(s)
      長谷川和志
    • Organizer
      部分多様体幾何とリー群作用2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] The H/Q-correspondence and a generalization of the supergravity c-map2023

    • Author(s)
      K。Hasegawa
    • Organizer
      第29回複素幾何シンポジウム
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 四元数/超複素-対応2022

    • Author(s)
      長谷川和志
    • Organizer
      部分多様体幾何とリー群作用2021
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] The quaternionic/hypercomplex-correspondence and its converse2021

    • Author(s)
      Kazuyuki Hasegawa
    • Organizer
      Special Geometry, Mirror Symmetry and Integrable Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The quaternionic/hypercomplex-correspondence-2021

    • Author(s)
      Kazuyuki Hasegawa
    • Organizer
      The 6th Workshop "Complex geometry and Lie groups"
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A construction of a hypercomplex manifold from a quaternionnic manifold-the quaternionic/hypercomplex-correspondence-2020

    • Author(s)
      Kazuyuki Hasegawa and Vicente Cortes
    • Organizer
      日本数学会 2020年度年会(会は中止だが,講演は成立)
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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