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2008 Fiscal Year Final Research Report

Asymptotic Analysis of nonlinear ordinary differential equations and its applications

Research Project

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Project/Area Number 17540159
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Basic analysis
Research InstitutionHiroshima University

Principal Investigator

USAMI Hiroyuki  Hiroshima University, 大学院・理学研究科, 准教授 (90192509)

Co-Investigator(Renkei-kenkyūsha) NAITO Manabu  愛媛大学, 大学院・理工学研究科, 教授 (00106791)
TANIGAWA Tomoyuki  上越教育大学, 大学院・学校教育研究科, 准教授 (10332008)
KAMO Ken-ichi  札幌医科大学, 医学部, 講師 (10404740)
TERAMOTO Tomomitsu  尾道大学, 経済情報学部, 助手 (20398465)
Project Period (FY) 2005 – 2008
Keywords常微分方程式 / 正値解 / 楕円型偏微分方程式 / 漸近挙動
Research Abstract

実領域上での非線型常微分方程式の漸近理論について研究成果を上げることができた. 例えば, 準線型2階方程式の正値解の漸近形を導出できた. また, 高階常微分方程式の解の振動性の特徴付けや解の零点の分布状況を調べた. 応用として, 比較定理等を用いて楕円型偏微分方程式の種々の漸近的性質を持つ解の存在証明や解の振動性の特徴付け等ができた.

  • Research Products

    (33 results)

All 2009 2008 2007 2006 2005 Other

All Journal Article (20 results) (of which Peer Reviewed: 13 results) Presentation (13 results)

  • [Journal Article] Regularly varying solutions of half-linear functional differential equations with retarded arguments2008

    • Author(s)
      Tomoyuki Tanigawa
    • Journal Title

      Acta Math. Hungar. 120

      Pages: 53-78

    • Peer Reviewed
  • [Journal Article] On positive decaying solutions of quasilinear ordinary differential equations with singular nonlinearities2008

    • Author(s)
      Misako Motai and Hiroyuki Usami
    • Journal Title

      Funkcial. Ekvac. 51

      Pages: 39-531

  • [Journal Article] Positive unbounded solutions of second order quasilinear ordinary differential equations and its application to elliptic problems2008

    • Author(s)
      Ken-ichi Kamo and Hiroyuki Usami
    • Journal Title

      Czechoslovak Math. J. 58

      Pages: 1153-1165

    • Peer Reviewed
  • [Journal Article] Asymptotic forms of positive solutions of quasilinear ordinary differential equations with singular nonlinearities2008

    • Author(s)
      Ken-ichi Kamo and Hiroyuki Usami
    • Journal Title

      Nonlinear Anal, TMA. 68-6

      Pages: 1627-1639

    • Peer Reviewed
  • [Journal Article] Asymptotic forms of slowly decaying positive solutions of second-order quasilinear ordinary differential equations「関数方程式論におけるモデリングと複素解析」2008

    • Author(s)
      Ken-ichi Kamo and Hiroyuki Usami
    • Journal Title

      京都大学数理解析研究所講究録 1582

      Pages: 43-52

  • [Journal Article] weakly increasing positive solutions of quasilinear ordinary differential equations2007

    • Author(s)
      Ken-ichi Kamo and Hiroyuki Usami
    • Journal Title

      Electron.J. Differential Equations 2007-126

      Pages: 1-12

    • Peer Reviewed
  • [Journal Article] Oscillation theorems of quasilinear elliptic equations with arbitrary nonlinearities2007

    • Author(s)
      Tomomitsu Teramoto and Hiroyuki Usami
    • Journal Title

      Differential and Integral Equations 20

      Pages: 577-600

    • Peer Reviewed
  • [Journal Article] 2階半線型楕円型方程式系の正値全域解の存在2007

    • Author(s)
      寺本智光
    • Journal Title

      京都大学数理解析研究所講究録「現象からの関数方程式」 1547

      Pages: 161-169

  • [Journal Article] Asymptotic forms of weakly increasing positive solutions of quasilinear ordinary differential equations2007

    • Author(s)
      Ken-ichi Kamo and Hiroyuki Usami
    • Journal Title

      京都大学数理解析研究所講究録「現象からの関数方程式」 1547

      Pages: 18-26

  • [Journal Article] On the number of zeros of bounded nonoscillatory solutions to higher-order nonlinear ordinary differential equations2007

    • Author(s)
      Manabu Naito
    • Journal Title

      Arch. Math.(Brno) 43-1

      Pages: 39-53

    • Peer Reviewed
  • [Journal Article] Vojislav Maric, and Tomoyuki Tanigawa, The asymptotic behaviour of solutions of a class of nonlinear second-order differential equations2007

    • Author(s)
      Takashi Kusano
    • Journal Title

      Bull. London Math. Soc. 39-3

      Pages: 413-418

    • Peer Reviewed
  • [Journal Article] Manabu Naito, Existence of positive solutions of higher-order quasilinear ordinary differential equations2007

    • Author(s)
      Manabu Naito
    • Journal Title

      Ann. Mat.Pura Appl. 186-1

      Pages: 59-84

    • Peer Reviewed
  • [Journal Article] 2階準線型楕 円型方程式系の large solutionについて2006

    • Author(s)
      宇佐美広介, 寺本智光
    • Journal Title

      京都大学数理解析研究所講究録「関数方程式の解のダイナミクスと数値シュミレーション」 1474

      Pages: 11-18

  • [Journal Article] Existence of nonoscillatory solutions tos econd-order elliptic systems ofE mden-Fowler type2006

    • Author(s)
      Manabu Naito, and Hiroyuki Usami
    • Journal Title

      Indiana Univ. Math. J. 55-1

      Pages: 317-399

    • Peer Reviewed
  • [Journal Article] Existence and asymptotic behavior of positive solutions of higher-order quasilinbear ordinary differential equations2006

    • Author(s)
      Manabu Naito
    • Journal Title

      Math. Nachr. 279-1/2

      Pages: 198-216

    • Peer Reviewed
  • [Journal Article] Nonoscillatory half-linear differential equations and generalized Karamata functions2006

    • Author(s)
      Jaloslav Jaros, Takasi Kusano, andTomoyuki Tanigawa
    • Journal Title

      NonlinearA nal. TMA 64-4

      Pages: 762-787

    • Peer Reviewed
  • [Journal Article] On the structure of positive solutions of a class of fourth order nonlinear differential equations2006

    • Author(s)
      Takasi Kusano, and Tomoyuki Tanigawa
    • Journal Title

      Ann. Mat. Pura Appl. 185-4

      Pages: 521-536

    • Peer Reviewed
  • [Journal Article] Application of Riccatitype inequalities to asymptotic theory ofelliptic problems

    • Author(s)
      Hiroyuki Usami
    • Journal Title

      Proc. Royal. Soc. (印刷中)

    • Peer Reviewed
  • [Journal Article] 2階半線型楕円型方程式系の正値全域解

    • Author(s)
      寺本智光
    • Journal Title

      京都大学数理解析研究所講究録 (印刷中)

  • [Journal Article] Asymptotic forms of slowly decaying solutions of quasilinear ordinary differential equations with critical exponents

    • Author(s)
      Hiroyuki Usami
    • Journal Title

      京都大学数理解析研究所講究録 (印刷中)

  • [Presentation] 2階楕円型方程式系の正値全域解の存在と非存在2009

    • Author(s)
      寺本智光
    • Organizer
      日本数学会年会・函数方程式論分科会
    • Place of Presentation
      東京大学
    • Year and Date
      2009-03-27
  • [Presentation] 2階準線型常微分方程式の緩減衰正値解の漸近形について : 臨界的な場合2009

    • Author(s)
      宇佐美広介
    • Organizer
      日本数学会年会・函数方程式論分科会
    • Place of Presentation
      東京大学
    • Year and Date
      2009-03-26
  • [Presentation] 高階劣線型常微分方程式の終局的正値解の漸近挙動2009

    • Author(s)
      内藤学
    • Organizer
      日本数学会年会・函数方程式論分科会
    • Place of Presentation
      東京大学
    • Year and Date
      2009-03-26
  • [Presentation] 高階準線形常微分方程式の解の延長可能性について2008

    • Author(s)
      内藤学
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2008-09-24
  • [Presentation] 2階準線型常微分方程式の緩減衰正値解の漸近形についてII2008

    • Author(s)
      宇佐美広介
    • Organizer
      日本数学会年会・函数方程式論分科会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-28
  • [Presentation] 遅れ型半分線形微分方程式の正則変動関数解について2007

    • Author(s)
      谷川智幸
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      東北大学
    • Year and Date
      2007-09-21
  • [Presentation] 2階準線型常微分方程式の緩減衰正値解の漸近形について2007

    • Author(s)
      宇佐美広介, 加茂憲一
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      東北大学
    • Year and Date
      2007-09-21
  • [Presentation] 2階準線型常微分方程式の弱増加正値解の漸近形について2007

    • Author(s)
      宇佐美広介
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      埼玉大学
    • Year and Date
      2007-03-27
  • [Presentation] 2階半線形楕円型方程式系の正値全域解について2006

    • Author(s)
      寺本智光
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2006-09-20
  • [Presentation] 遅れ型半分線形微分方程式の緩変動関数解について2006

    • Author(s)
      谷川智幸
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2006-09-19
  • [Presentation] 準線型楕円型方程式系の終局的正値解の非存在性2006

    • Author(s)
      宇佐美広介
    • Organizer
      日本数学会年会・函数方程式論分科会
    • Place of Presentation
      中央大学理工学部
    • Year and Date
      2006-03-26
  • [Presentation] 2階準線型楕円型方程式系のlarge solutionについて2005

    • Author(s)
      宇佐美広介, 寺本智光
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      岡山大学
    • Year and Date
      2005-09-20
  • [Presentation] 高階準線形常微分方程式に対するKneser解について2005

    • Author(s)
      内藤学, 宇佐美広介
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      岡山大学
    • Year and Date
      2005-09-19

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

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