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離散変分法および離散偏導関数法の実用化に向けた基礎研究

Research Project

Project/Area Number 12J02563
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Engineering fundamentals
Research InstitutionThe University of Tokyo

Principal Investigator

宮武 勇登  東京大学, 情報理工学系研究科, 特別研究員(DC1)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2014: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2013: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2012: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywords数値解析 / 離散変分法 / 離散偏導関数法 / 構造保存数値解法 / 微分方程式
Outline of Annual Research Achievements

本研究では,偏微分方程式に対する構造保存数値解法の一種である「離散変分法」および「離散偏導関数法」の実用化に向けた基礎研究を目的としていたが,その中で以下の知見を得た.
・Hunter-Saxton方程式に対する構造保存数値解法の研究:近年,様々な分野で,非局所作用素を含む非常に複雑な偏微分方程式を取り扱う必要性がでてきているが,その数値計算は容易ではない.本研究では,特に構造保存数値解法の文脈では新しいタイプであるHunter-Saxton方程式に着目し,離散変分法を拡張することで,同方程式に対する構造保存スキームの構築に成功した.
・Poisson系に対する高精度エネルギー保存解法:初年度の研究では,Hamilton系に対して高精度な時間変数の離散化方法を提案していたが,偏微分方程式の文脈ではより複雑な方程式を取り扱う必要があることを念頭に,Hamilton系の拡張であるPoisson系に対してエネルギー保存解法の枠組を構築し,特に振動解を持つ場合に対して,高精度かつ既存解法より高速なエネルギー保存解法を構築した.

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (33 results)

All 2015 2014 2013 2012

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Acknowledgement Compliant: 4 results) Presentation (24 results)

  • [Journal Article] A note on the adaptive conservative/dissipative discretization for evolutionary partial differential equations2015

    • Author(s)
      Yuto Miyatake, Takayasu Matsuo
    • Journal Title

      J. Comput. Appl. Math.

      Volume: 274 Pages: 79-87

    • DOI

      10.1016/j.cam.2014.06.027

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A derivation of energy-preserving exponentially-fitted integrators for Poisson systems2015

    • Author(s)
      Yuto Miyatake
    • Journal Title

      Comput. Phys. Commun.

      Volume: 187 Pages: 156-161

    • DOI

      10.1016/j.cpc.2014.11.003

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] An energy-preserving exponentially-fitted continuous stage Runge-Kutta method for Hamiltonian systems2014

    • Author(s)
      Yuto Miyatake
    • Journal Title

      BIT Numer. Math.

      Volume: 54 Issue: 3 Pages: 777-799

    • DOI

      10.1007/s10543-014-0474-4

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A general framework for finding energy dissipative/conservative H1-Galerkin schemes and their underlying H1-weak forms for nonlinear evolution equations2014

    • Author(s)
      Yuto Miyatake, Takayasu Matsuo
    • Journal Title

      BIT Numer. Math.

      Volume: 54 Issue: 4 Pages: 1119-1154

    • DOI

      10.1007/s10543-014-0483-3

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 微分方程式に対する構造保存数値解法2012

    • Author(s)
      松尾宇泰, 宮武勇登
    • Journal Title

      日本応用数理学会論文誌

      Volume: 22 Pages: 213-251

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Energy-preserving HI-Galerkin schemes for the shallow water wave equations2012

    • Author(s)
      Y. Miyatake, T. Matsuo
    • Journal Title

      Physics Letters A

      Volume: 376 Pages: 2633-2639

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Energy conservative/dissipative Hl-Galerkins semi-discretizations for partial differential equations2012

    • Author(s)
      Y. Miyatake, T. Matsuo
    • Journal Title

      Proceedings of ICNAAM 2012 in AIP Conference Proceediings

      Volume: 1479 Pages: 1268-1271

    • DOI

      10.1063/1.4756385

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conservative finite difference schemes for the Degasperis-Procesi equation2012

    • Author(s)
      Y. Miyatake, T. Matsuo
    • Journal Title

      J. Comput. Appl. Math.

      Volume: 236 Issue: 15 Pages: 3728-3740

    • DOI

      10.1016/j.cam.2011.09.004

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical integration of the Ostrovsky equation based on its geometric structures2012

    • Author(s)
      Y. Miyatake, T. Yaguchi, T. Matsuo
    • Journal Title

      J. Comput. Phys.

      Volume: 231 Issue: 14 Pages: 4542-4559

    • DOI

      10.1016/j.jcp.2012.02.027

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] A fourth‐order energy‐preserving exponentially‐fitted integrator for Poisson systems2014

    • Author(s)
      Yuto Miyatake
    • Organizer
      ICNAAM 2014
    • Place of Presentation
      Rhodes(ギリシャ)
    • Year and Date
      2014-09-22 – 2014-09-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] A parallel energy-preserving method for Hamiltonian systems2014

    • Author(s)
      Yuto Miyatake
    • Organizer
      KCNADE 2014
    • Place of Presentation
      京都(京都大学)
    • Year and Date
      2014-09-16 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] ハミルトン系に対する並列的なエネルギー保存解法2014

    • Author(s)
      宮武勇登
    • Organizer
      日本応用数理学会2014年度年会
    • Place of Presentation
      東京(政策研究大学院大学)
    • Year and Date
      2014-09-03 – 2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] Hunter-Saxton方程式の離散化における境界条件の扱いについて2014

    • Author(s)
      宮武勇登,David Cohen,降籏大介,松尾宇泰
    • Organizer
      第43回数値解析シンポジウム
    • Place of Presentation
      石垣(ホテル日航八重山)
    • Year and Date
      2014-06-11 – 2014-06-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] 修正Hunter-Saxton方程式に対するエネルギー保存スキーム2014

    • Author(s)
      宮武勇登,David Cohen,降籏大介,松尾宇泰
    • Organizer
      日本応用数理学会 研究部会連合発表会
    • Place of Presentation
      京都(京都大学)
    • Year and Date
      2014-03-19 – 2014-03-20
    • Related Report
      2013 Annual Research Report
  • [Presentation] 一般の境界条件の下での保存・散逸的不連続ガレルキン法2014

    • Author(s)
      相本佳史,松尾宇泰,宮武勇登
    • Organizer
      一般の境界条件の下での保存・散逸的不連続ガレルキン法
    • Place of Presentation
      京都(京都大学)
    • Year and Date
      2014-03-19 – 2014-03-20
    • Related Report
      2013 Annual Research Report
  • [Presentation] Poisson系に対する時間4次精度のエネルギー保存EFスキームの導出について2014

    • Author(s)
      宮武勇登
    • Organizer
      研究集会「常微分方程式の数値解法とその周辺2014」
    • Place of Presentation
      袋井(静岡理工科大学 袋井キャンパス)
    • Year and Date
      2014-03-05 – 2014-03-07
    • Related Report
      2013 Annual Research Report
  • [Presentation] An energy-preserving finite-difference scheme for the modified Hunter-Saxton equation2014

    • Author(s)
      Yuto Miyatake, David Cohen, Daisuke Furihata, Takayasu Matsuo
    • Organizer
      ANZIAM 2014
    • Place of Presentation
      Rotorua(ニュージーランド)
    • Year and Date
      2014-02-02 – 2014-02-06
    • Related Report
      2013 Annual Research Report
  • [Presentation] Poisson系に対するエネルギー保存解法の特徴付けとその応用2014

    • Author(s)
      宮武勇登
    • Organizer
      環瀬戸内応用数理研究部会
    • Place of Presentation
      松山(愛媛大学)
    • Year and Date
      2014-01-11 – 2014-01-12
    • Related Report
      2013 Annual Research Report
  • [Presentation] 高振動系に対する構造保存Gautschi型スキーム2013

    • Author(s)
      宮武勇登
    • Organizer
      応用数学合同研究集会
    • Place of Presentation
      大津(龍谷大学瀬田キャンパス)
    • Year and Date
      2013-12-19 – 2013-12-21
    • Related Report
      2013 Annual Research Report
  • [Presentation] An energy-preserving exponentially-fitted continuous stage Runge-Kutta method for Hamiltonian systems2013

    • Author(s)
      Yuto Miyatake
    • Organizer
      SciCADE 2013
    • Place of Presentation
      Valladolid(スペイン)
    • Year and Date
      2013-09-16 – 2013-09-20
    • Related Report
      2013 Annual Research Report
  • [Presentation] On the derivation of energy-preserving H1-Galerkin schemes for Hamiltonian partial differential equations2013

    • Author(s)
      Yuto Miyatake, Takayasu Matsuo
    • Organizer
      SciCADE 2013
    • Place of Presentation
      Valladolid(スペイン)
    • Year and Date
      2013-09-16 – 2013-09-20
    • Related Report
      2013 Annual Research Report
  • [Presentation] 偏微分方程式の構造保存数値解法における空間離散化について2013

    • Author(s)
      宮武勇登,松尾宇泰
    • Organizer
      日本応用数理学会2013年度年会
    • Place of Presentation
      福岡(アクロス福岡)
    • Year and Date
      2013-09-09 – 2013-09-11
    • Related Report
      2013 Annual Research Report
  • [Presentation] 振動解を持つハミルトン系に対する陽的な保存スキームの導出とその誤差解析2013

    • Author(s)
      宮武勇登,松尾宇泰
    • Organizer
      日本応用数理学会2013年度年会
    • Place of Presentation
      福岡(アクロス福岡)
    • Year and Date
      2013-09-09 – 2013-09-11
    • Related Report
      2013 Annual Research Report
  • [Presentation] A discontinuous Galerkin method based on variational structures2013

    • Author(s)
      Takayasu Matsuo, Yoshifumi Aimoto, Yuto Miyatake
    • Organizer
      Czech-Japanese Seminar in Applied Mathematics 2013
    • Place of Presentation
      東京(明治大学 中野キャンパス)
    • Year and Date
      2013-09-05 – 2013-09-08
    • Related Report
      2013 Annual Research Report
  • [Presentation] Invariants-preserving integration of the modified Camassa-Holm equation2013

    • Author(s)
      Yuto Miyatake
    • Organizer
      The 9th East Asia SIAM Conference
    • Place of Presentation
      Bandung(インドネシア)
    • Year and Date
      2013-06-18 – 2013-06-20
    • Related Report
      2013 Annual Research Report
  • [Presentation] Structure-preserving discretizations for Ostrovsky-type nonlocal nonlinear wave equations2013

    • Author(s)
      Yuto Miyatake
    • Organizer
      The Third International Conference: Nonlinear Waves-Theory and Applications
    • Place of Presentation
      北京(中国)
    • Year and Date
      2013-06-12 – 2013-06-15
    • Related Report
      2013 Annual Research Report
  • [Presentation] 無断式ルンゲ・クッタ法とそのハミルトン系への応用2013

    • Author(s)
      宮武勇登, 松尾宇泰
    • Organizer
      応用数理学会 研究部会連合発表会
    • Place of Presentation
      東洋大学 東京
    • Year and Date
      2013-03-14
    • Related Report
      2012 Annual Research Report
  • [Presentation] Energy-preserving exponentially-fitted integrators for Hamiltonian systems2013

    • Author(s)
      Y. Miyatake, T. Matsuo
    • Organizer
      2013 Tokyo Wotkshop on Structure-Preserving Methods
    • Place of Presentation
      東京大学 東京
    • Year and Date
      2013-01-08
    • Related Report
      2012 Annual Research Report
  • [Presentation] 周期/振動解を持つ常微分方程式に特化した保存スキームの導出法2012

    • Author(s)
      宮武勇登, 松尾宇泰
    • Organizer
      応用数学合同研究集会
    • Place of Presentation
      龍谷大学 滋賀
    • Year and Date
      2012-12-21
    • Related Report
      2012 Annual Research Report
  • [Presentation] Energy conservative/dissipative Hl-Galerkin semi-discretizations for partial differential equations2012

    • Author(s)
      Y. Miyatake, T. Matsuo
    • Organizer
      ICNAAM 2012
    • Place of Presentation
      コス島 ギリシャ
    • Year and Date
      2012-09-20
    • Related Report
      2012 Annual Research Report
  • [Presentation] 構造保存有限要素法とその適合格子への拡張2012

    • Author(s)
      宮武勇登, 松尾宇泰
    • Organizer
      日本応用数理学会2012年度年会
    • Place of Presentation
      稚内全日空ホテル 北海道
    • Year and Date
      2012-08-30
    • Related Report
      2012 Annual Research Report
  • [Presentation] A structure-preserving wavelet collocation method for nonlinear partial differential equations2012

    • Author(s)
      Y. Miyatake, T. Matsuo
    • Organizer
      ICCAM 2012
    • Place of Presentation
      ゲント ベルギー
    • Year and Date
      2012-07-09
    • Related Report
      2012 Annual Research Report
  • [Presentation] ウェーブレットに基づく離散変分法2012

    • Author(s)
      宮武勇登, 松尾宇泰
    • Organizer
      第41回数値解析シンポジウム
    • Place of Presentation
      伊香保温泉 群馬
    • Year and Date
      2012-06-06
    • Related Report
      2012 Annual Research Report

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Published: 2013-04-25   Modified: 2024-03-26  

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