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A geometric characterization of discrete Guichard nets and their transformations in integrable geometry

Research Project

Project/Area Number 17F17734
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Geometry
Research InstitutionKobe University

Principal Investigator

Rossman W.F  神戸大学, 理学研究科, 教授 (50284485)

Co-Investigator(Kenkyū-buntansha) SZEWIECZEK GUDRUN  神戸大学, 理学研究科, 外国人特別研究員
Project Period (FY) 2017-11-10 – 2019-03-31
Project Status Discontinued (Fiscal Year 2018)
Budget Amount *help
¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2018: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2017: ¥700,000 (Direct Cost: ¥700,000)
Keywordschannel surfaces / Guichard nets / R-congruences / discrete surfaces
Outline of Annual Research Achievements

Gudrun worked on the following projects:
1) The study of discrete channel surfaces, as joint work with myself and Gudrun's former Ph.D. advisor Udo Hertrich-Jeromin at the Technical University of Vienna. Following clues from the theory of smooth channel surfaces, which can be thought of as tubes with varying radius as one moves along a non-circular direction of the surface, Gudrun established why one particular way of discretizing is the best choice. Gudrun further examined possible applications, finding a characterization of discrete isothermic channel surfaces, and finding connections with multi-circular discrete nets. This work has been submitted for publication.
2) The study of discrete Guichard triply orthogonal systems, joint work with Joseph Cho at Kobe University and myself. In particular, Gudrun made the interesting discovery that the conformal diagonal surfaces of Guichard triply orthogonal systems can be minimal surfaces.
3) The study of Combescure and Ribaucour transformations of Guichard nets, as an extension of her Ph.D. thesis.
4) The study of discrete R-congruences, work that Gudrun is conducting with Thilo Roerig of the Technical University of Berlin.
All four projects described above were successful and are of interest to other researchers in Gudrun's field.

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (8 results)

All 2018 2017

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

  • [Journal Article] Channel Surfaces in Lie Sphere Geometry2018

    • Author(s)
      Mason Pember and Gudrun Szewieczek
    • Journal Title

      Beitraege zur Algebra und Geometrie

      Volume: 13366

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Channel surfaces in Lie sphere geometry2018

    • Author(s)
      Mason Pember and Gudrun Szewieczek
    • Journal Title

      Beitraege zur Algebra und Geometrie

      Volume: 13366

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Combescure transformations of Guichard nets2018

    • Author(s)
      G Szewieczek
    • Organizer
      Osaka City University, International Workshop 'Geometry of Submanifolds and Integrable Systems'
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Conformally flat hypersurfaces and Guichard nets2018

    • Author(s)
      G Szewieczek
    • Organizer
      OIST Okinawa, Topology Seminar
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Channel surfaces -- smooth and discrete2018

    • Author(s)
      G Szewieczek
    • Organizer
      Osaka City University, Geometry Seminar
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Invited
  • [Presentation] Guichard nets and their associated systems2017

    • Author(s)
      G Szewieczek
    • Organizer
      Technial Univ. Wien, Geometry Seminar
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Transformations of channel surfaces2017

    • Author(s)
      G Szewieczek
    • Organizer
      Kobe University, Geometry Seminar
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Transformations of channel surfaces2017

    • Author(s)
      G Szewieczek
    • Organizer
      Obergurgl University Center, Geometry Workshop in Obergurgl
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2017-11-13   Modified: 2024-03-26  

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