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Stability of the spectral collocation method for evolution equations

Research Project

Project/Area Number 18540124
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General mathematics (including Probability theory/Statistical mathematics)
Research InstitutionThe University of Tokushima

Principal Investigator

TAKEUCHI Toshiki  The University of Tokushima, 大学院・ソシオテクノサイエンス研究部, 教授 (30264964)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,980,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥480,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywords安定性 / 発展方程式 / スペクトル選点法 / 逆問題 / 熱伝導方程式 / 数値シミュレーション / 高精度数値計算 / 多倍長計算 / 偏微分方程式 / 高精度 / シミュレーション
Research Abstract

熱伝導方程式の逆問題に対して空間、時間ともにスペクトル選点法を適用して離散化した場合の時間発展に対する数値安定性の研究を行った。逆問題では解も指数的に増大するため、解の増大度に対する誤差の増大度を表す相対安定性を定義し、離散化行列の固有値を計算することにより安定領域を調べた。その結果、スペクトル選点法の次数に応じて時間刻みをある程度大きく取れば安定に数値計算が行えるという結果が得られた。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (9 results)

All 2008 2007 2006

All Journal Article (7 results) (of which Peer Reviewed: 5 results) Presentation (2 results)

  • [Journal Article] Parallel Computing of Interval Arithmetic in Multiple Pre-cision for Simultaneous Linear Equa-tions2008

    • Author(s)
      Hedio Sakaguchi, Hitoshi Imai and Toshiki Takeuchi
    • Journal Title

      GAKUTO International Series, Mathematical Sciences and Applications Vol.28

      Pages: 165-172

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Parallel Computing of Interval Arithmetic in Multiple Precision for Simultaneous Linear Equations2008

    • Author(s)
      Hideo Sakaguchi
    • Journal Title

      Mathematical Sciences and Applications Vol. 28

      Pages: 165-172

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical treatment of analytic continuation with multiple-precision arithmetic2007

    • Author(s)
      Hiroshi Fujiwara, Hitoshi Imai, Toshiki Takeuchi and Yusuke Iso,
    • Journal Title

      Hokkaido Mathematical Journal Vol.36

      Pages: 837-848

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Numerical treatment of analytic continuation with multiple-precision arithmetic2007

    • Author(s)
      Hiroshi Fujiwara
    • Journal Title

      Hokkaido Mathematical Journal Vol.36,No.4

      Pages: 837-848

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 円環領域におけるCauchy問題の無限精度数値計算2007

    • Author(s)
      金珍玉, 竹内敏己, 今井仁司, 坂口秀雄
    • Journal Title

      第56回理論応用力学講演会講演論文集

      Pages: 541-542

    • NAID

      130004603776

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Some Numerical Exper-iments on Global Simulation of the Backward Heat Conduction Problem, Problem with a Variable Transform on Time2006

    • Author(s)
      Toshiki Takeuchi, Hitoshi Imai and Yinglian Zhu
    • Journal Title

      Theoretical and Applied Mechan-ics Japan Vol.55

      Pages: 175-184

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Some Numerical Experiments on Global simulation of the Backward Heat Conduction Problem2006

    • Author(s)
      Toshiki Takeuchi, Hitoshi Imai, Yinglian Zhu
    • Journal Title

      Theoretical and Applied Mechanics Japan Vol.55

      Pages: 175-184

    • NAID

      130004463596

    • Related Report
      2006 Annual Research Report
  • [Presentation] ラプラス作用素のCauchy問題の解の接続に関するいくつかの数値計算2008

    • Author(s)
      竹内敏己, 今井仁司
    • Organizer
      第57回理論応用力学講演会講演論文集
    • Place of Presentation
      日本学術会議(NCTAM2007)
    • Related Report
      2008 Final Research Report
  • [Presentation] 円環領域におけるCauchy問題の無限精度数値計算2007

    • Author(s)
      金珍玉, 竹内敏己, 今井仁司, 坂口秀雄
    • Organizer
      第56回理論応用力学講演会講演論文集
    • Place of Presentation
      日本学術会議(NCTAM2007)
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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