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The representation formulas for a surface of higher codimension and a submanifold and their application

Research Project

Project/Area Number 17K05217
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Geometry
Research InstitutionUniversity of Hyogo (2019-2021)
University of Tsukuba (2017-2018)

Principal Investigator

Moriya Katsuhiro  兵庫県立大学, 理学研究科, 教授 (50322011)

Co-Investigator(Kenkyū-buntansha) 長谷川 和志  金沢大学, 学校教育系, 教授 (50349825)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords変換 / 極小曲面 / 共形写像 / 調和写像 / ウィルモア曲面 / minimal surface / conformal map / harmonic map / 微分幾何 / 曲面論 / 可積分系 / 曲面 / 表現公式 / Lagrange曲面 / 四元数的正則幾何 / クリフォード代数 / ツイスター空間 / ラグランジュ曲面 / Schwarzの補題 / 幾何学 / 微分幾何学
Outline of Final Research Achievements

I studied how to construct a concrete example of a surface. We obtained a new method for constructing a new one from a given one for a surface which is a mathematical object corresponding to a soap film (minimal surface) in a four-dimensional Euclidean space. We have extended a representation formula and transforms that were known about general surfaces in 4-dimensional Euclidean space to surfaces in n-dimensional Euclidean space. We extended the transforms known for the minimal surface in the 3-sphere to the transforms of surfaces in the n-sphere, and found that if a given surface is minimal, then the transform is the transforms between minimal surfaces.

Academic Significance and Societal Importance of the Research Achievements

一般に微分方程式の解を全て求めることは難しい. 代わりに, 解が一つ与えられているときに, それを用いて新たな解を構成できることがある. その理論を変換の理論という. 変換の理論が作れるのは, 関連する数学が十分発展している微分方程式である.極小曲面の微分方程式はそのような微分方程式のうちの一つである.本研究では, すでに知られていた極小曲面の微分方程式の変換の理論を, 新たな計算方法を導入して, 次元が高い場合に拡張した. これにより, すでに知られていた変換の新たな意味づけや, 変換の理論の構成の可能性がある微分方程式の候補が得られた.

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (29 results)

All 2022 2021 2020 2018 2017 Other

All Int'l Joint Research (10 results) Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 5 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 5 results,  Invited: 7 results) Remarks (2 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Leicester(英国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Leicester(英国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Leicester(英国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University College Cork(アイルランド)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University of Granada(スペイン)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Technical University of Munich(ドイツ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University of Leicester(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Granada(Spain)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University College Cork(Ireland)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Technical University of Munich(Germany)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Polar varieties and bipolar surfaces of minimal surfaces in the n-sphere2021

    • Author(s)
      Moriya Katsuhiro
    • Journal Title

      Annals of Global Analysis and Geometry

      Volume: 61 Issue: 1 Pages: 21-36

    • DOI

      10.1007/s10455-021-09793-2

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The $$\mu $$-Darboux transformation of minimal surfaces2020

    • Author(s)
      Leschke K.、Moriya K.
    • Journal Title

      manuscripta mathematica

      Volume: 162 Issue: 3-4 Pages: 537-558

    • DOI

      10.1007/s00229-019-01142-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The spinor representation of conformal mappings of surfaces2020

    • Author(s)
      守屋克洋
    • Journal Title

      数理解析研究所講究録

      Volume: 2152 Pages: 16-19

    • NAID

      40022258171

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] The Schwarz Lemma for Super-Conformal Maps2017

    • Author(s)
      Katsuhiro Moriya
    • Journal Title

      Hermitian-Grassmannian submanifolds. Proceedings of the 20th International Workshop on Hermitian Symmetric Spaces and Submanifolds. Springer Proceedings in Mathematics & Statistics

      Volume: 203 Pages: 59-68

    • DOI

      10.1007/978-981-10-5556-0_6

    • ISBN
      9789811055553, 9789811055560
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An inclusive immersion into a quaternionic manifold and its invariants2017

    • Author(s)
      Kazuyuki Hasegawa
    • Journal Title

      manuscripta mathematica

      Volume: 154 Issue: 3-4 Pages: 527-549

    • DOI

      10.1007/s00229-017-0928-5

    • NAID

      120006764684

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Nearly Kahler Submanifold with Vertically Pluri-Harmonic Lift2017

    • Author(s)
      Kazuyuki Hasegawa
    • Journal Title

      Hermitian-Grassmannian submanifolds. Proceedings of the 20th International Workshop on Hermitian Symmetric Spaces and Submanifolds. Springer Proceedings in Mathematics & Statistics

      Volume: 203 Pages: 49-58

    • DOI

      10.1007/978-981-10-5556-0_5

    • ISBN
      9789811055553, 9789811055560
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Twistor Lifts and Factorization for Conformal Maps from a Surface to the Euclidean Four-space2017

    • Author(s)
      Kazuyuki Hasegawa, Katsuhiro Moriya
    • Journal Title

      Advances in Applied Clifford Algebras

      Volume: 印刷中 Issue: 2 Pages: 1243-1262

    • DOI

      10.1007/s00006-016-0728-0

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Transversally Complex Submanifolds of a Quaternion Projective Space2017

    • Author(s)
      Kazumi Tsukada
    • Journal Title

      Hermitian-Grassmannian submanifolds. Proceedings of the 20th International Workshop on Hermitian Symmetric Spaces and Submanifolds. Springer Proceedings in Mathematics & Statistics

      Volume: 203 Pages: 223-233

    • DOI

      10.1007/978-981-10-5556-0_19

    • ISBN
      9789811055553, 9789811055560
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 単位球面内の極小曲面の変換2022

    • Author(s)
      守屋克洋
    • Organizer
      2021年度秋季総合分科会幾何学分科会一般講演
    • Related Report
      2021 Annual Research Report
  • [Presentation] The spinor representation of conformal mappings of surfaces2018

    • Author(s)
      守屋克洋
    • Organizer
      RIMS 共同研究 (公開型) 部分多様体の幾何学の深化と展開
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] The spinor representation of a surface in an Euclidean space of arbitrary dimension2018

    • Author(s)
      Katsuhiro Moriya
    • Organizer
      m:iv mini-workshop
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Darboux transforms of minimal surfaces2018

    • Author(s)
      Katrin Leschke
    • Organizer
      Yorkshire Durham Geometry Days
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ベクトル束の複素構造と球面への調和写像2017

    • Author(s)
      守屋克洋
    • Organizer
      部分多様体論・湯沢2017
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] The Schwarz lemma for conformal maps from the open unit disk into the Euclidean four-space2017

    • Author(s)
      Katsuhiro Moriya
    • Organizer
      Geometry of Submanifolds and Integrable Systems
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] An inclusive immersion in a quaternionic manifold and its invariants2017

    • Author(s)
      Kazuyuki Hasegawa
    • Organizer
      Differential Geometry, Banach center, Bedlewo, Poland
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Transformation of Minimal Surfaces2017

    • Author(s)
      Katrin Leschke
    • Organizer
      Higgs Bundles, Harmonic Maps, and Integrable Systems
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 論文の説明(非専門家向け)

    • URL

      https://researchmap.jp/blogs/blog_entries/view/91101/a81758075bb0645d5b94a32083a2c333?frame_id=1421684

    • Related Report
      2021 Annual Research Report
  • [Remarks] m:iv

    • URL

      https://www2.le.ac.uk/projects/miv

    • Related Report
      2019 Research-status Report 2018 Research-status Report
  • [Funded Workshop] Minimal Surfaces and related topics2017

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2023-01-30  

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