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Relations of formal power series of one variable and coding of space curves by iterated path integrals

Research Project

Project/Area Number 23540236
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Global analysis
Research InstitutionOchanomizu University

Principal Investigator

NAKAI Isao  お茶の水女子大学, 大学院人間文化創成科学研究科, 教授 (90207704)

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: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords力学系 / 関係式 / センター問題 / WEB幾何学 / 平面曲線 / 自由群 / 反復線積分 / 国際研究者交流、フランスおよびイスラエル / 常微分方程式 / マグナス展開 / 特異点
Research Abstract

The words consisting of two letters X,Y and their inverses constitute a group structure in algebra, where the concatenation of words is the product. An element of this group defines a polygonal path with vertices on the integral lattice. Plane curves are regarded as generalization of such linear paths, hence words of X,Y. From this point of view, the group of plane curves are investigated, especially curves are presented as generalized words of X,Y and the logarithms of those curves are investigated as elements of the free algebra generated by X,Y, and some results are obtained.

Report

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

    (8 results)

All 2014 2013 2012 2011

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results) (of which Invited: 2 results)

  • [Journal Article] Webs and Singularities2014

    • Author(s)
      NAKAI, Isao
    • Journal Title

      Journal of Singularities

      Volume: Vol 9(掲載ページ未定)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Presentation] Relation of germs of diffeomorphisms of (C,0) and Geometry of path group2013

    • Author(s)
      Isao Nakai
    • Organizer
      Seminar on Geometry and Topology in Weizman institute
    • Place of Presentation
      Rehovot, Israel
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Geometry of Path group Feuilletages et equations differentielles complexes2012

    • Author(s)
      NAKAI, Isao
    • Organizer
      国際議
    • Place of Presentation
      フランス, マルセイユ CIRM 研究所
    • Year and Date
      2012-10-16
    • Related Report
      2013 Final Research Report
  • [Presentation] Relation of germs of diffeomorphisms of (C,0) and Geometry of path group2012

    • Author(s)
      Isao Nakai
    • Organizer
      Feuilletages et équations différentielles complexes
    • Place of Presentation
      Luminy, France
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Webs and Singularities Les Jornees textiles2011

    • Author(s)
      NAKAI, Isao
    • Organizer
      国際会議
    • Place of Presentation
      Universite de Rennes 1, フランス, レンヌ
    • Year and Date
      2011-11-23
    • Related Report
      2013 Final Research Report
  • [Presentation] Webs and Singularities Resolution of singularities and related topics2011

    • Author(s)
      NAKAI, Isao
    • Organizer
      国際会議
    • Place of Presentation
      Tordesillas, スペイン
    • Year and Date
      2011-09-22
    • Related Report
      2013 Final Research Report
  • [Presentation] Topology of Cubic maps2011

    • Author(s)
      中居功
    • Organizer
      Congreso Hironaka 80(招待講演)
    • Place of Presentation
      Tordesillas, SPEIN
    • Related Report
      2011 Research-status Report
  • [Presentation] Topology of Cubic maps2011

    • Author(s)
      中居功
    • Organizer
      Journees Textiles(招待講演)
    • Place of Presentation
      Rennes, France
    • Related Report
      2011 Research-status Report

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

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