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2005 Fiscal Year Final Research Report Summary

Study of the integrable systems in mathematical physics and applied analysis

Research Project

Project/Area Number 15540219
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Global analysis
Research InstitutionDoshisha University

Principal Investigator

OHMIYA Mayumi  Doshisha University, Faculty of Engineering, Professor, 工学部, 教授 (50035698)

Co-Investigator(Kenkyū-buntansha) WATANABE Yoshihide  Doshisha University, Faculty of Engineering, Professor, 工学部, 教授 (50127742)
KONDO Koichi  Doshisha University, Faculty of Engineering, Lecturer, 工学部, 専任講師 (30314397)
Project Period (FY) 2003 – 2005
KeywordsDarboux transformation / Iso-monodromy / Iso-spectral / Sine-Gordon equation / NMR quantum computer / Grobner basis / Wavelet analysis / Singular value decomposition
Research Abstract

We clarified the isomonodromic property of the Darboux-Lame equation obtained by the double Darboux transformation for the 2^<nd> Lame equation. Using this, we succeeded to characterize the differential equations of Heun type whose monodromy can be exactly calculable by transforming it to the differential equation on the complex projective line by a covering map.
Moreover, applying the classical Appell's lemma, we developed a new algorithm of solving the differential equations. In addition, we extended the spectral degenerate condition of Darboux transformation to the non-spectral case. Furthermore, we investigated the asymptotic behavior of the elliptic multi-soliton solutions applying this result, and discovered the new addition formula of the elliptic function.
On the other hand, we accomplished the study of the modulation instability of the strongly dispersive nonlinear system, and decided the modulation instability zone of the wave numbers of the nonhomoclinic solution to Sine-Gordo … More n equation. At the same time, we carried out the numerical study of such unstable phenomena using Hirota's difference scheme, and showed that this scheme was fairly useful even for the unstable phenomena.
On the one hand, we proved the iso-spectral property of the double Darboux transformation, and clarified the equivalence of the iso-monodromic property and the iso-spectral property in some specific case.
Moreover, we studied the formula for the reconstruction of qubit density matrix in NMR quantum computing. Moreover, we studied the GHZ state of 5 qubits NMR quantum computing.
On the other hand, we studied the application of Grobner basis. In particular, we implemented the computation of Grobner basis of the toric ideal to the computer algebra system "Asir".
We studied the application of the wavelet analysis to the numerical analysis of the nonlinear wave motion, and verified certain efficiency of Beylkin's method. On the other hand, we constructed the mathematical model of the heat acoustic cooling system as nonlinear phenomena. Moreover, we studied the appropriate singular value decomposition algorithm for the image compression applying the wavelet analysis. Less

  • Research Products

    (13 results)

All 2005 2004 Other

All Journal Article (12 results) Book (1 results)

  • [Journal Article] Appell's lemma and A-operator as a tool of solving ODEs2005

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      The WSEAS transactions on Systems 4・11

      Pages: 2023-2030

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Appell's lemma and Λ-operator as a tool of solving ODEs2005

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      The WSEAS transactions on Systems Vol.4

      Pages: 2023-2030

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Darboux-Lame equation and isomonodromic deformation2004

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      Abstract and Applied Analysis 2004・6

      Pages: 511-524

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Covering map and the elliptic Calogero system2004

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      The WSEAS transactions on Mathematics 3・3

      Pages: 555-559

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] トーリックイデアルのグレブナ基底計算アルゴリズム-数式処理システムAsirへの実装-2004

    • Author(s)
      渡邊芳英他3名
    • Journal Title

      同志社大学理工研報告 44・4

      Pages: 17-26

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Darboux-Lae equation and isomonodromic Deformation,2004

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      Abstract and Applied Analysis Vol.2004

      Pages: 511-524

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Covering map and the elliptic Calogero system2004

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      The WSEAS transactions on Mathematics Vol.3

      Pages: 555-559

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Numerical study of Benjamin-Feir type instability of Sine-Gordon equation II

    • Author(s)
      Mayumi Ohmiya他2名
    • Journal Title

      The WSEAS transactions on Mathematics (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Isospectral property of double Darboux transformation

    • Author(s)
      Mayumi Ohmiya他1名
    • Journal Title

      Osaka Journal of Mathematics (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Numerical study of Benjamin-Feir type instability of Sine-Gordon equation II,

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      The WSEAS transactions on Mathematics (in printing)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Isospectral property of double Darboux transformation,

    • Author(s)
      Mayumi Ohmiya
    • Journal Title

      Osaka Journal of Mathematics (in printing)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Algorithms for computation of Grobner bases of toric ideals - Implementation to the computer algebra system Asir,

    • Author(s)
      Yoshihide Watanabe
    • Journal Title

      The Science and Engineering Review of Doshisha University Vol.44

      Pages: 217-226

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] International conference on differential equations and their application2004

    • Author(s)
      Mayumi Ohmiya(分担執筆)(Ed. P.D.Siafarikas)
    • Total Pages
      379
    • Publisher
      Hindawi Publishing Corp.
    • Description
      「研究成果報告書概要(和文)」より

URL: 

Published: 2007-12-13  

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