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Geometry of analytic singularities

Research Project

Project/Area Number 23540087
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Geometry
Research InstitutionHyogo University of Teacher Education

Principal Investigator

KOIKE SATOSHI  兵庫教育大学, 学校教育研究科(研究院), 教授 (60161832)

Co-Investigator(Renkei-kenkyūsha) FUKUI Toshizumi  埼玉大学, 大学院・理工学研究科, 教授 (90218892)
SHIOTA Masahiro  名古屋大学, 大学院・多元数理科学研究科, 名誉教授 (00027385)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords点列選択性性質 / A'Campo 曲率隆起 / 曲率集中化 / ツリーモデル / SSP 幾何学(オーストラリア) / A'Campo 曲率隆起(オーストラリア) / 曲率集中化問題(オーストラリア) / SSP 幾何学(オーストラリア) / A'Campo 曲率隆起(オーストラリア) / 曲率集中化問題(オーストラリア、フランス) / SSP幾何学(オーストラリア)
Research Abstract

Analytic singularity, in general, can be considerd as a singular point of an analytic set or a singular point of an analytic function. In this research we discussed the both cases, and obtained the following results.
In the first case we laid the basis for the geometry of sets satisfying the Sequence Selection Property whose notion had been introduced by L. Paunescu of University of Sydney and me. In particular, we showed Sequence Selection Property Preserving Theorem and Transversality Preserving Theorem at a singular point of a set,
On the other hand, in the latter case, we formulated a condition for the appearance of A'Campo curvature bumps in a family of level curves of a two variable analytic function around a singular point of the function. In addition, we gave a condition for the appearance of concentration of curvature in the family pf level curves, using the tree model of the function.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (31 results)

All 2014 2013 2012 2011 Other

All Journal Article (8 results) (of which Peer Reviewed: 2 results) Presentation (14 results) (of which Invited: 2 results) Book (4 results) Remarks (5 results)

  • [Journal Article] Non concentration of curvature near singular points of two variable analytic functions, Topics on Real and Complex Singularities2014

    • Author(s)
      Satoshi Koike, Tzee-Char Kuo and Laurentiu Paunescu
    • Journal Title

      World Scientific

      Pages: 115-140

    • Related Report
      2013 Final Research Report
  • [Journal Article] Equivalence relations for two variable real analytic function germs2013

    • Author(s)
      Satoshi Koike and Adam Parusinski
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 65 Pages: 237-276

    • NAID

      10031177279

    • Related Report
      2013 Annual Research Report 2013 Final Research Report 2012 Research-status Report
  • [Journal Article] Directional properties of sets definable in o-minimal structures2013

    • Author(s)
      Satoshi Koike, Ta Le Loi, Laurentiu Paunescu and Masahiro Shiota
    • Journal Title

      Annales de l'Institut Fourier

      Volume: 63 Pages: 2017-2047

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Journal Article] A study of curvature using infinitesimals2012

    • Author(s)
      Satoshi Koike, Tzee-Char Kuo and Laurentiu Paunescu
    • Journal Title

      Proceedings of the Japan Academy

      Volume: 88 Pages: 70-74

    • NAID

      40019276578

    • Related Report
      2013 Final Research Report
  • [Journal Article] Finiteness theorem for Blow-semialgebraic triviality for a family of three-dimensional algebraic sets2012

    • Author(s)
      Satoshi Koike
    • Journal Title

      Proceedings of the London Mathematical Society

      Volume: 105 Pages: 506-540

    • Related Report
      2013 Final Research Report
  • [Journal Article] A study of curvature using infinitesimals2012

    • Author(s)
      Satoshi Koike, Tzee-Char Kuo, Laurentiu Paunescu
    • Journal Title

      Proceedings of the Japan Academy

      Volume: 88 Issue: 5 Pages: 70-74

    • DOI

      10.3792/pjaa.88.70

    • NAID

      40019276578

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Finiteness theorem for Blow-semialgebraic triviality of a family of three-dimensional algebraic sets2012

    • Author(s)
      Satoshi Koike
    • Journal Title

      Proceedings of the London Mathematical Society

      Volume: 105 Issue: 3 Pages: 506-540

    • DOI

      10.1112/plms/pds003

    • Related Report
      2012 Research-status Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] On the geometry of sets satisfying the sequence selection property

    • Author(s)
      Satoshi Koike and Laurentiu Paunescu
    • Journal Title

      Journal of the Mathematical Society of Japan

    • NAID

      130005069893

    • Related Report
      2013 Final Research Report
  • [Presentation] 実代数曲面上定義された多項式写像族の半代数的自明性に関する有限性2014

    • Author(s)
      小池敏司
    • Organizer
      研究集会「第3回神戸特異点研究会」
    • Place of Presentation
      兵庫教育大学神戸ハーバーランドキャンパス
    • Year and Date
      2014-03-07
    • Related Report
      2013 Final Research Report
  • [Presentation] Sequence Selection Property and its Applications2013

    • Author(s)
      Satoshi Koike
    • Organizer
      Symposium "A small seminar for two Dragons"
    • Place of Presentation
      近畿大学
    • Year and Date
      2013-02-16
    • Related Report
      2013 Final Research Report
  • [Presentation] Sequence Selection Property and Bi-Lipschitz Homeomorphisms2012

    • Author(s)
      Satoshi Koike
    • Organizer
      International Symposium"Topology and Geometry of Singular Spaces"
    • Place of Presentation
      CIRM, France
    • Year and Date
      2012-11-10
    • Related Report
      2013 Final Research Report
    • Invited
  • [Presentation] Sequence Selection Property and Bi-Lipschitz Homeomorphisms2012

    • Author(s)
      Satoshi Koike
    • Organizer
      GTA Seminar
    • Place of Presentation
      University of Sydney
    • Year and Date
      2012-09-12
    • Related Report
      2013 Final Research Report
  • [Presentation] Equivalence relations for real analytic function germs2011

    • Author(s)
      Satoshi Koike
    • Organizer
      Geometry Seminar
    • Place of Presentation
      University of Sydney
    • Year and Date
      2011-09-20
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] Blow-analytic equivalence2011

    • Author(s)
      Satoshi Koike
    • Organizer
      Geometry Seminar
    • Place of Presentation
      University of Sydney
    • Year and Date
      2011-08-21
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] Watt 曲線について2011

    • Author(s)
      小池敏司
    • Organizer
      研究集会「第2回神戸特異点研究会」
    • Place of Presentation
      兵庫教育大学神戸サテライト
    • Year and Date
      2011-07-23
    • Related Report
      2013 Final Research Report
  • [Presentation] 特異点での近くでのA'Campo曲率隆起2011

    • Author(s)
      小池敏司
    • Organizer
      研究集会「特異点とその応用」
    • Place of Presentation
      大分工業高等専門学校
    • Year and Date
      2011-06-01
    • Related Report
      2013 Final Research Report
  • [Presentation] 特異点での近くでの A'Campo 曲率隆起2011

    • Author(s)
      小池敏司
    • Organizer
      研究集会「特異点論とその応用」
    • Place of Presentation
      大分工業高等専門学校
    • Related Report
      2011 Research-status Report
  • [Presentation] Watt 曲線について2011

    • Author(s)
      小池敏司
    • Organizer
      第2回神戸特異点研究会
    • Place of Presentation
      兵庫教育大学神戸サテライト
    • Related Report
      2011 Research-status Report
  • [Presentation] 実代数曲面上定義された多項式写像族の半代数的自明性に関する有限性定理

    • Author(s)
      小池敏司
    • Organizer
      第3回神戸特異点研究会
    • Place of Presentation
      兵庫教育大学神戸ハーバーランドキャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] Sequence Selection Property and Bi-Lipschitz Homeomorphism

    • Author(s)
      Satoshi Koike
    • Organizer
      GTA Seminar
    • Place of Presentation
      University of Sydney, Australia
    • Related Report
      2012 Research-status Report
  • [Presentation] Sequence Selection Property and Bi-Lipschitz Homeomorphism

    • Author(s)
      Satoshi Koike
    • Organizer
      International Symposium "Topology and Geometry of Singular Spaces"
    • Place of Presentation
      CIRM, Furance
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Sequence Selection Property and its Application

    • Author(s)
      Satoshi Koike
    • Organizer
      Symposium "A small seminar for two dragons"
    • Place of Presentation
      Kinki University, japan
    • Related Report
      2012 Research-status Report
  • [Book] Topics on Real and Complex Singularities2014

    • Author(s)
      Satoshi Koike, Toshizumi Fukui, Laurentiu Paunescu, Adam Harris and Alexander Isaev
    • Publisher
      World Scientific
    • Related Report
      2013 Final Research Report
  • [Book] Topics on Real and Complex Singu;larities2014

    • Author(s)
      Satoshi Koike, Toshizumi Fukui, Laurentiu Paunescu, Adam Harris, Alexander Issaev (編)
    • Total Pages
      201
    • Publisher
      World Scientific
    • Related Report
      2013 Annual Research Report
  • [Book] Geometry on Real Closed Field and its Applications2011

    • Author(s)
      Satoshi Koike
    • Total Pages
      1764
    • Publisher
      RIMS Kokyuroku
    • Related Report
      2013 Final Research Report
  • [Book] 実閉体上の幾何と特異点論への応用(講究録1764)2011

    • Author(s)
      小池敏司(編)
    • Total Pages
      173
    • Publisher
      京都大学数理解析研究所
    • Related Report
      2011 Research-status Report
  • [Remarks] ホームページ

    • URL

      http://www.sci.hyogo-u.ac.jp/koike/

    • Related Report
      2013 Final Research Report
  • [Remarks] Satoshi Koike, Tzee-Char Kuo and Laurentiu Paunescu, A'Campo curvature bumps and the Dirac phenomenon near a singular point, arXiv:1206, 0525

    • Related Report
      2013 Final Research Report
  • [Remarks] Satoshi Koike and Laurentiu Paunescu, On the geometry of sets satisfying the sequence selection property, arXiv: 1201.1669 (雑誌論文○6 ).

    • Related Report
      2013 Final Research Report
  • [Remarks] Satoshi Koike, Tzee-Char Kuo and Laurentiu Paunescu, Non concentrtion of curvature near singular points of two variable analytic functions, (雑誌論文○5 ).

    • Related Report
      2013 Final Research Report
  • [Remarks]

    • URL

      http://www.sci.hyogo-u.ac.jp/koike/

    • Related Report
      2011 Research-status Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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