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2013 Fiscal Year Final Research Report

A research on the geometric singularities of non-linear phenomena

Research Project

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Project/Area Number 22340011
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionHokkaido University

Principal Investigator

IZUMIYA Shyuichi  北海道大学, 理学(系)研究科(研究院), 教授 (80127422)

Co-Investigator(Kenkyū-buntansha) ISHIKAWA Goo  北海道大学, 大学院・理学研究院, 教授 (50176161)
TERAO Hiroaki  北海道大学, 大学院・理学研究院, 教授 (90119058)
TONEGAWA Yoshihiro  北海道大学, 大学院・理学研究院, 教授 (80296748)
OHMOTO Toru  北海道大学, 大学院・理学研究院, 教授 (20264400)
Co-Investigator(Renkei-kenkyūsha) ONO Kaoru  京都大学, 数理解析研究所, 教授 (20204232)
UMEHARA Masaaki  東京工業大学, 大学院・理工学研究科, 教授 (90193945)
KOIKE Shigeaki  東北大学, 大学院・理学研究科, 教授 (90205295)
Project Period (FY) 2010-04-01 – 2014-03-31
Keywords特異点 / 非線形現象 / 相対性理論 / ローレンツ空間形 / ルジャンドル特異点 / ラグランジュ特異点
Research Abstract

In this research project we constructed the notion of 'lightlike curvature' for spacelike submanifolds of Lorentzian space forms by using the notion of 'lightcone Gauss maps'.As an application of the theory of Legendrian singularities, we described the singularities of the lighhtlike hypersurface along a spacelike submanifold. Moreover, we constructed a geometric framework to describe the caustics of world sheets which is an important notion in the theory of general relativity and the brane world scenario. We clarified the relation of the caustics and the wave front propagations iby using the theory of graph-like Legendrian unfoldings.

  • Research Products

    (15 results)

All 2013 2012 2011 2010 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (4 results) Remarks (2 results)

  • [Journal Article] Lightlike hypersurfaces along spacelike submanifolds in Minowski space-time2013

    • Author(s)
      Shyuichi Izumiya, Takami Sato
    • Journal Title

      Journal of Geometry and Physics

      Volume: 71 Pages: 30-52

    • DOI

      10.1016/j.geomphys.2013.03.005

    • Peer Reviewed
  • [Journal Article] Lightcone dualities for curves in the lightcone unit 3-sphere2013

    • Author(s)
      Shyuichi Izumiya, Yang Jiang, Takami Sato
    • Journal Title

      Journal of Mathematical Physics

      Volume: 54 Pages: 063511

    • DOI

      10.1063/1.4811451

    • Peer Reviewed
  • [Journal Article] Characteristic classes of Hilbert schemes od points via symmetrics products2013

    • Author(s)
      S Cappel, L Maxim, T Ohmoto, J Schurmann, S. Yokura
    • Journal Title

      Geometry & Topology

      Volume: 17 Pages: 1165-1198

    • DOI

      10.2140/gt.2013.17.1165

    • Peer Reviewed
  • [Journal Article] Pedal foliations and Gauss maps of hypersurfaces in Euclidean space2012

    • Author(s)
      Shyuichi Izumiya, Masatomo Takahashi
    • Journal Title

      Journal of Singularities

      Volume: 6 Pages: 84-97

    • DOI

      10.5427/jsing.2012.6g

    • Peer Reviewed
  • [Journal Article] Sigularities of tangent varieties to curves and surfaces2012

    • Author(s)
      Goo Ishikawa
    • Journal Title

      Journal of Singularities

      Volume: 6 Pages: 54-83

    • DOI

      10.5427/jsing.2012.6f

    • Peer Reviewed
  • [Journal Article] Two-phase flow problem coupled with mean curvature flow2012

    • Author(s)
      Chun Liu, Yoshihiro Tonegawa and Norifumi Sato
    • Journal Title

      Interfaces Free Bound

      Volume: 14 Pages: 185-203

    • DOI

      10.4171/IFB/279

    • Peer Reviewed
  • [Journal Article] Horo-tight spheres in hyprbolic space2011

    • Author(s)
      Marcelo Buosi, Shyuichi Izumiya, Maria Aparecida, Soares Ruas
    • Journal Title

      Geometriae Dedicata

      Volume: 154 Pages: 9-26

    • Peer Reviewed
  • [Journal Article] Periodicity of non-cetral integral arrangemens modulo positive integers2011

    • Author(s)
      H Kamiya, A Takemura, H Terao
    • Journal Title

      Annals of Combinatorics

      Volume: 15 Pages: 449-464

    • DOI

      10.1007/s00026-011-0105-6

    • Peer Reviewed
  • [Journal Article] Horospherical flat surfaces in Hyperbolic 3-space2010

    • Author(s)
      S Izumiya, K Saji, M Takahashi
    • Journal Title

      Journal of Mathematical Society of Japan

      Volume: 62 Pages: 789-849

    • Peer Reviewed
  • [Presentation] Caustics of world sheets in anti-de Sitter space2013

    • Author(s)
      Shyuichi Izumiya
    • Organizer
      Singularities in geometry and appliccationsIII
    • Place of Presentation
      Edinburgh (Scotland)
    • Year and Date
      2013-09-02
  • [Presentation] Total lightcone curvatures of spacelike submanifolds in Lorentz-Minkowski space2012

    • Author(s)
      Shyuichi Izumiya
    • Organizer
      The International Conference of Differential Geometry and Dynamical Systems Balkan Society of Geometers
    • Place of Presentation
      Mangalia (Rumania)
    • Year and Date
      2012-08-29
  • [Presentation] The lightlike geometry of spacelike submanifolds in Lorentz-Minkowslki space2012

    • Author(s)
      Shyuichi Izumiya
    • Organizer
      Bruce 60 & Wall 75, Workshop in Singularity Theory, its Applications and Future Prospects
    • Place of Presentation
      Liverpool(UK)
    • Year and Date
      2012-06-28
  • [Presentation] ローレンツ・ミンコフスキー空間内の空間的部分多様体の光的幾何学2012

    • Author(s)
      泉屋周一
    • Organizer
      特異点論と幾何構造
    • Place of Presentation
      長野市
    • Year and Date
      2012-05-30
  • [Remarks]

    • URL

      http://researchmap.jp/izumiya/

  • [Remarks]

    • URL

      http://www.math.sci.hokudai.ac.jp

URL: 

Published: 2015-06-25  

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