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Studies on integrable systems aroud the Painleve systems

Research Project

Project/Area Number 24540205
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Global analysis
Research InstitutionThe University of Tokyo

Principal Investigator

SAKAI HIDETAKA  東京大学, 数理(科)学研究科(研究院), 准教授 (50323465)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsパンルヴェ方程式 / 特殊函数 / 差分方程式 / 超幾何函数 / 特殊凾数 / 超幾何凾数
Outline of Final Research Achievements

In this research project we have been seeking a higher dimensional analog of theory of the Painleve equations.
In the case of 4-dimension, Kawakami-Nakamura-Sakai had obtained partial classification of the Painleve-type equations. One of the coauthors, Kawakami, is finishing the classification, considering the ramified cases. About another goal of this project, geometrical characterization of the classification, Nakamura, who is another coauthor, took the first step on it. She gave a characterization of the equations by using Namikawa-Ueno's classification of degeneration of genus two curves.
Although Sakai didn't make a big contribution on the development of the theory, our group of research accomplished the initial goals to a respectable degree.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (6 results)

All 2015 2013 Other

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

  • [Journal Article] Toward a classication of four dimensional Painleve-type equations2013

    • Author(s)
      H. Kawakami, A. Nakamura, and H. Sakai
    • Journal Title

      AMS Comtemporary Mathematics, Algebraic and Geometric Aspects of Integrable Systems and Random Matrices

      Volume: 593

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ordinary Differential Equations on Rational Elliptic Surfaces2013

    • Author(s)
      H. Sakai
    • Journal Title

      Symmetries, Integrable Systems and Representations: Springer Proceedings in Mathematics & Statistics

      Volume: 40 Pages: 515-541

    • DOI

      10.1007/978-1-4471-4863-0_22

    • ISBN
      9781447148623, 9781447148630
    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Studies on the Painleve equations2015

    • Author(s)
      坂井秀隆
    • Organizer
      日本数学会・特別講演(無限可積分系)
    • Place of Presentation
      明治大学駿河台キャンパス
    • Year and Date
      2015-03-24
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Monodromy preserving deformation and 4-dimensional Painleve type equations

    • Author(s)
      H. Sakai
    • Organizer
      Workshop on In- tegrable Systems
    • Place of Presentation
      University of Sydney
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Studies on the Painleve equations

    • Author(s)
      H. Sakai
    • Organizer
      微分方 程式の総合的研究
    • Place of Presentation
      東京大学
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Toward a classification of four-dimensional Painleve-type equations (Joint work with H. Kawakami and A. Nakamura)

    • Author(s)
      坂井秀隆
    • Organizer
      Various Aspects on the Painlevé Equations
    • Place of Presentation
      京都大学
    • Related Report
      2012 Research-status Report
    • Invited

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Published: 2013-05-31   Modified: 2023-03-16  

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