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The study of generic properties of differentiable dynamical systems

Research Project

Project/Area Number 22540221
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Global analysis
Research InstitutionThe University of Tokyo

Principal Investigator

HAYASHI Shuhei  東京大学, 数理(科)学研究科(研究院), 准教授 (20247208)

Project Period (FY) 2010-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
KeywordsPalis予想 / Smale予想 / 可観測性 / 無限個の沈点 / ラグランジュ系
Outline of Final Research Achievements

On the C1 Palis Conjecture saying that in the complement of the closure of C1 diffeomorphisms having the uniform hyperbolicity (Axiom A + no cycle condition) there exist a dense subset of those exhibiting homoclinic bifurcations, we prove that the conjecture is true if C2 ergodic measures with zero Lyapunov exponents are destroyed by C1 small perturbations. For the 2-dimensional case, if Smale Conjecture saying that uniformly hyperbolic diffeomorphisms are dense in C1 surface diffeomorphisms is not true, then (taking the inverse if necessary) in a residual subset of the complement of uniformly hyperbolic diffeomorphisms, there exist infinitely many sinks, which are either observable or pathological. Moreover, we developed a new C1 closing lemma for C2 diffeomorphisms under some condition.

Report

(6 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (8 results)

All 2014 2012 2011 2010

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (5 results) (of which Invited: 2 results)

  • [Journal Article] A C2 generic trichotomy for diffeomorphisms: hyperbolicity or zero Lyapunov exponents or the C1 creation of homoclinic bifurcations2014

    • Author(s)
      Shuhei HAYASHI
    • Journal Title

      Transactions of the American Mathematical Society

      Volume: 366 Issue: 11 Pages: 5613-5651

    • DOI

      10.1090/s0002-9947-2014-06425-8

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Applications of Mane's C^2 connecting lemma2010

    • Author(s)
      Shuhei HAYASHI
    • Journal Title

      Proceedings of American Mathematical Society

      Volume: 138 Pages: 1371-1385

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An extension of the ergodic closing lemma2010

    • Author(s)
      Shuhei HAYASHI
    • Journal Title

      Ergodic Theory and Dynamical Systems

      Volume: 30 Pages: 773-808

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] A refinement of Mane's C1 generic dichotomy2014

    • Author(s)
      Shuhei HAYASHI
    • Organizer
      Dynamical Systems and Related Topics
    • Place of Presentation
      Chungnam National University, Daejeon, Korea
    • Year and Date
      2014-08-08
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] On infinitely many observable sinks for diffeomorphisms2014

    • Author(s)
      Shuhei Hayashi
    • Organizer
      RIMS研究集会「力学系と計算」
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On the observability of periodic orbits for diffeomorphisms2012

    • Author(s)
      Shuhei Hayashi
    • Organizer
      School and Conference in Dynamical Systems
    • Place of Presentation
      Trieste, Italy
    • Related Report
      2012 Annual Research Report
  • [Presentation] On the creation of observable periodic orbits for diffeomorphisms2011

    • Author(s)
      Shuhei Hayashi
    • Organizer
      RIMS研究集会「力学系とトポロジーのフロンティア」
    • Place of Presentation
      京都大学
    • Year and Date
      2011-11-24
    • Related Report
      2011 Annual Research Report
  • [Presentation] A C^2 generic trichotomy for diffeomorphisms2011

    • Author(s)
      林修平
    • Organizer
      冬の力学系研究集会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2011-01-09
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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