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2008 Fiscal Year Final Research Report

Numerical Methods and Numerical Analysis for Partial Differential Equations with Singularities

Research Project

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Project/Area Number 18540107
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 InstitutionYamagata University

Principal Investigator

QING Fang  Yamagata University, 理学部, 教授 (10243544)

Co-Investigator(Kenkyū-buntansha) SHINZO Kawamura  山形大学, 理学部, 教授 (50007176)
Co-Investigator(Renkei-kenkyūsha) HIDEKI Sawada  山形大学, 学術情報基盤センター, 教授 (30095856)
TAKUJI Nishimura  山形大学, 理学部, 助教 (90333947)
Project Period (FY) 2006 – 2008
Keywords微分方程式 / 境界値問題 / 特異性 / 有限差分法 / 有限要素法 / 誤差評価 / 超収束
Research Abstract

物理学、化学、生物学、地学、工学等の自然科学及び経済学、金融学等の人文科学において、現象の数理モデルを記述するには微分方程式が良く使われている。微分方程式の解析解を解くことがとても難しいので、コンピュータによって数値解を求めることは要求されている。その中で、特異性の解を持つ微分方程式の数値解法に対してまだ知られていないことが多く存在する。本研究では、研究代表者は、研究分担者たちの協力を得て、2次元空間の中の多角形領域における特異性の解をもつポアソン方程式の混合境界値問題について、有限差分解の微分の収束解析を行った。また、1次元区間における2点境界値問題に対しても、有限差分解の誤差評価と関連する課題について、成果を得た。

  • Research Products

    (28 results)

All 2009 2008 2007 2006

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (12 results)

  • [Journal Article] Strange topological conjugates between two tent maps2009

    • Author(s)
      H.Wang and S.Kawamura
    • Journal Title

      Far East Journal of Dynamical Systms 9

      Pages: 17-44

    • Peer Reviewed
  • [Journal Article] Superconvergence of solution derivatives of the Shortley-Weller difference approximation to elliptic equations with singularities involving the mixed type of boundary conditions2008

    • Author(s)
      Zi-Cai Li, Qing Fang, Song Wang and Hsin-Yun Hu
    • Journal Title

      Numer. Funct. Anal. Optimiz 29

      Pages: 161-196

    • Peer Reviewed
  • [Journal Article] Discretization principles for linear two-point boundary value problems, II2008

    • Author(s)
      Tetsuro Yamamoto, Shin-ichi Oishi and Qing Fang
    • Journal Title

      Numer.Funct. Anal. Optimiz 29

      Pages: 213-224

    • Peer Reviewed
  • [Journal Article] Superconvergence of solution derivatives of the Shortley-Weller difference approximation to Poisson's equation with singularities on polygonal domains2008

    • Author(s)
      Zi-Cai Li, Hsin-Yun Hu, Song Wang, Qing Fang
    • Journal Title

      Applied Numerical Mathematics 58

      Pages: 689-704

    • Peer Reviewed
  • [Journal Article] Discretizaion prnciples for linar two-point boundary value problems, III2008

    • Author(s)
      Tetsuro Yamamoto, Shin'ichi Oishi, M. Zuhair Nashed, Zi-Cai Li and Qing Fang
    • Journal Title

      Numer. Funct. Anal. Optimiz 29

      Pages: 1180-1200

    • Peer Reviewed
  • [Journal Article] Chaotic homeomorphisms of compact subspaces of the real line2008

    • Author(s)
      Payer Ahmed and Shinzo Kawamura
    • Journal Title

      Bull. Yamagata Univ., Nat. Sci 16

      Pages: 15-21

    • Peer Reviewed
  • [Journal Article] Francois Panneton and Pierre L'Ecuyer, Efficient jump ahead for F_2-linear random number generators2008

    • Author(s)
      Hiroshi Haramoto, Makoto Matsumoto,Takuji Nishimura
    • Journal Title

      INFORMS J. Comput 20

      Pages: 385-390

    • Peer Reviewed
  • [Journal Article] On the utility of a bilateral system2007

    • Author(s)
      Hideki Sawada and Qing Fang
    • Journal Title

      Information 10

      Pages: 183-191

    • Peer Reviewed
  • [Journal Article] New extrmal slf-dual code o length 662007

    • Author(s)
      M.Harada, T. Nishimura and R.Yorgova
    • Journal Title

      Mathematica Balkanica (N.S.) 21

      Pages: 113-121

    • Peer Reviewed
  • [Journal Article] An extremal singly even self-dual code of length 882007

    • Author(s)
      M.Harada and T.Nishimura
    • Journal Title

      Advances in Mathematics of Communications 1

      Pages: 261-267

    • Peer Reviewed
  • [Journal Article] Computing conditional probabilities for F2-linear pseudo- random bigenetors by spling MacWilliams identity2007

    • Author(s)
      H.Haramoto, M.Matsumoto and T.Nishimura
    • Journal Title

      International Journal of Pure and Applied Mathematics 38

      Pages: 29-42

    • Peer Reviewed
  • [Journal Article] A fast stream cipher with huge state space and quasigroup filter for softare,Seleced Areas in Cryptography2007

    • Author(s)
      M.Matsumoto, M.Saito, M.Hagita and T.Nishimura
    • Journal Title

      Lecture Notes in Computer Science 4876

      Pages: 246-263

    • Peer Reviewed
  • [Journal Article] On a generalization of the Euler- Chebyshev method for simultaneous extraction of oly a part f all rots of polynomials2006

    • Author(s)
      A.Iliev, N.Kyurkchiev and Qing Fang
    • Journal Title

      Japan J. Indust. Appl. Math 23

      Pages: 63-73

    • Peer Reviewed
  • [Journal Article] Convergence of Ascher- Mattheij-Russell finite difference method for a class of two-point boundary value problems2006

    • Author(s)
      Qing Fang
    • Journal Title

      Information 9

      Pages: 563-572

    • Peer Reviewed
  • [Journal Article] Banach lattices and the Perron- Frobenius operator associated with chaotic map2006

    • Author(s)
      P.Ahmed,S.Kawamura and S.Sasaki
    • Journal Title

      Far East Journal of Dynamical Systems 8

      Pages: 1-25

    • Peer Reviewed
  • [Journal Article] Pseudorandm number generation : impossibility and compromise2006

    • Author(s)
      M.Matsumoto, T.Nishimura, M.Saito and H.Haramoto
    • Journal Title

      J. Univer. Comput. Sci 12

      Pages: 672-690

    • Peer Reviewed
  • [Presentation] 特異性の解を持つDirichlet境界値問題に対するShortley-Weller近似解の微分の超収束性2009

    • Author(s)
      方青
    • Organizer
      日本応用数理学会2007年度年会
    • Place of Presentation
      北海道大学
    • Year and Date
      2009-09-16
  • [Presentation] 楕円型境界値問題の解の一意性について2008

    • Author(s)
      方青
    • Organizer
      第12回環瀬戸内応用数理研究部会シンポジウム
    • Place of Presentation
      山形大学
    • Year and Date
      20081010-12
  • [Presentation] 楕円型混合境界値問題の差分解の微分の超収束性2008

    • Author(s)
      方青
    • Organizer
      日本数学会秋期総合分会
    • Place of Presentation
      東京工業大学
    • Year and Date
      20080924-27
  • [Presentation] A chaotic property of a conjugacy connecting two tent maps2008

    • Author(s)
      Shinzo Kawamura
    • Organizer
      Operator Structures and Dynamical systems
    • Place of Presentation
      Leiden University
    • Year and Date
      20080720-24
  • [Presentation] Effect of stretching functions to non-uniform FDM for Poisson-type equations on a disk with singular solutions2007

    • Author(s)
      Qing Fang
    • Organizer
      The 7th International Conference on OptimizationAppliactions
    • Place of Presentation
      Kobe International Conferenc Center
    • Year and Date
      20071212-15
  • [Presentation] Error estimate of numerical solutions y the finitdiffence method for bound value problems2007

    • Author(s)
      方青
    • Organizer
      首都大学東京・数理解析セミナー
    • Place of Presentation
      首都大学東京
    • Year and Date
      2007-11-15
  • [Presentation] 長周期線形擬似乱数について2007

    • Author(s)
      西村拓士
    • Organizer
      日本応用数理学会2007年度年会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-17
  • [Presentation] ポアソン方程式の差分解の微分の超収束について2007

    • Author(s)
      方青
    • Organizer
      第11回環瀬戸内応用数理研究部会
    • Place of Presentation
      シンポジウム(岡山理科大学)
    • Year and Date
      2007-07-06
  • [Presentation] Orthogonal Systems associated with Chaotic maps2006

    • Author(s)
      Shinzou Kawamura
    • Organizer
      Harmonic Analysis and Orthogonal Expansions
    • Place of Presentation
      Bedlewo, Poland
    • Year and Date
      20060924-29
  • [Presentation] 線形2点境界値問題が一意解を持つために差分方程式と有限要素方程式がみたすべき必要十分条件2006

    • Author(s)
      山本哲朗・大石進一・方青
    • Organizer
      日本数学会秋期総合分会
    • Place of Presentation
      大阪市立大学
    • Year and Date
      20060919-22
  • [Presentation] Convergence of Finite Difference Methods Methods for Poisson-Type Equations with Singular Solutions2006

    • Author(s)
      方青
    • Organizer
      The First China-Japan-Korea Joint Conference on Numerical Mathematics & The Second East Asia SIAM Symposium
    • Place of Presentation
      Hokkaido University & Sapporo Convention Center
    • Year and Date
      20060803-06
  • [Presentation] The devil step and a strange slope2006

    • Author(s)
      H.Wang and S.Kawamura
    • Organizer
      「バナッハ空間及び関数空間の構造の研究」研究集会
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      20060607-09

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Published: 2010-06-10   Modified: 2016-04-21  

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