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野生的な力学系の研究

Research Project

Project/Area Number 14J01121
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Basic analysis
Research InstitutionTokyo Metropolitan University

Principal Investigator

篠原 克寿  首都大学東京, 理工学研究科, 特別研究員(PD)

Project Period (FY) 2014-04-25 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords野生的力学系 / 非双曲型力学系 / 異次元ヘテロクリニックサイクル / 異次元へテロクリニックサイクル / 部分双曲型力学系 / ホモクリニック接触 / 周期点の増大度 / 極小性
Outline of Annual Research Achievements

本年度はまず京都大学理学部数学教室の浅岡正幸氏や関連する力学系の研究者のグループを訪問し,非双曲型力学系の例である非双曲型の一次元の半群作用に関して,その周期点の増大度に関する研究を行った.この結果は浅岡氏および Imperial College London の Dmitry Turaev 氏との共同研究として論文``Degenerate behavior in non-hyperbolic semigroup actions on the interval: fast growth of periodic points and universal dynamics" にまとめ,現在専門誌に投稿中である.また,京都大学訪問中にこれまでの篠原の研究成果である野生的力学系の分岐に関する研究発表を二件行った.
その後,ニュージーランドのオークランドにある The University of Auckland を訪問し,Department of Mathematics の Bernd Krauskopf, Hinke Osinga 氏らのグループと非双曲型力学系を生み出すメカニズムとして重要なブレンダーと呼ばれる構造や,Lorenz 系の非双曲性に関する理論・数値解析的研究に関する打ち合わせを行った.
7月から8月にかけてイタリアのトリエステにあるThe Abdus Salam International Centre for Theoretical Physics (ICTP)で開かれた "School and Conference in Dynamical Systems"に参加し,非双曲型力学系の最新の研究動向に関して情報収集を行った.また,これまでの篠原の研究成果である非双曲型力学系の極小性に関して講演 "On the minimality of semigroup actions on the interval which are C1-close to the identity" を行い,成果発表を行った.

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (11 results)

All 2015 2014 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results)

  • [Int'l Joint Research] Imperial College London(英国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] University of Auckland(ニュージーランド)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Flexible periodic points2015

    • Author(s)
      Christian Bonatti and Katsutoshi Shinohara
    • Journal Title

      Ergodic Theory and Dynamical Systems

      Volume: 35 Issue: 5 Pages: 1394-1422

    • DOI

      10.1017/etds.2013.105

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rigorous estimates of quantization error for A/D converters based on beta-map2015

    • Author(s)
      Takaki Makino, Yukiko Iwata, Katsutoshi Shinohara, Yutaka Jitsumatsu, Masao Hotta, Hao San, Kazuyuki Aihara
    • Journal Title

      Nonlinear Theory and Its Applications, IEICE

      Volume: 6 Issue: 1 Pages: 99-111

    • DOI

      10.1587/nolta.6.99

    • NAID

      130004960166

    • ISSN
      2185-4106
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the minimality of semigroup actions on the interval which are C1-close to the identity2014

    • Author(s)
      K. Shinohara
    • Journal Title

      Proc. London Math. Soc.

      Volume: 109 Issue: 5 Pages: 1175-1202

    • DOI

      10.1112/plms/pdu032

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] On the minimality of semigroup actions on the interval which are C1-close to the identity2015

    • Author(s)
      Katsutoshi Shinohara
    • Organizer
      School and Conference on Dynamical Systems
    • Place of Presentation
      トリエステ(イタリア)
    • Year and Date
      2015-07-31
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Volume Hyperbolicity and Wildness2015

    • Author(s)
      Katsutoshi Shinohara
    • Organizer
      京都力学系セミナー
    • Place of Presentation
      京都大学(京都府・京都市)
    • Year and Date
      2015-05-29
    • Related Report
      2015 Annual Research Report
  • [Presentation] Abundance of flexible periodic points in partially hyperbolic systems2015

    • Author(s)
      Katsutoshi Shinohara
    • Organizer
      京都力学系セミナー
    • Place of Presentation
      京都大学(京都府・京都市)
    • Year and Date
      2015-04-24
    • Related Report
      2015 Annual Research Report
  • [Presentation] Blenders in centre unstable Henon-like families: with an application to heterodimensional bifurcations2014

    • Author(s)
      K. Shinohara
    • Organizer
      Dynamics Days in South America
    • Place of Presentation
      バルパライソ(チリ)
    • Year and Date
      2014-11-04
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] On the minimality of semigroup actions on the interval C1-close to the identity2014

    • Author(s)
      K. Shinohara
    • Organizer
      Rigidity School, Tokyo 2014
    • Place of Presentation
      東京大学
    • Year and Date
      2014-06-13
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] On C(1+a) hypothesis in Pesin Theory Revisited,2014

    • Author(s)
      K. Shinohara
    • Organizer
      International Conference "Topological and geometric methods in low-dimensional dynamical systems,"
    • Place of Presentation
      モスクワ
    • Year and Date
      2014-05-12
    • Related Report
      2014 Annual Research Report
    • Invited

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Published: 2015-01-22   Modified: 2024-03-26  

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