Usami Hiroyuki 宇佐美広介

… Alternative Names

宇佐美広介ウサミヒロユキ

USAMI Hiroyuki 宇佐美広介

宇佐見広介ウサミヒロユキ

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Researcher Number	90192509
Other IDs
External Links
Affiliation (Current)	2023: 岐阜大学, 工学部, 教授
Affiliation (based on the past Project Information) *help	2021: 岐阜大学, 工学部, 教授 2011 – 2014: 岐阜大学, 工学部, 教授 2007 – 2009: Hiroshima University, 大学院・理学研究科, 准教授 2008: 広島大学, 大学院理学研究科, 准教授 2007: 広島大学, 理学研究科, 准教授 … More 2006: Hiroshima University, Graduate School of Science, Associate Professor, 大学院理学研究科, 助教授 1993 – 2005: 広島大学, 総合科学部, 助教授 1988: 広島大学, 理学部, 助手 Less
Review Section/Research Field	Principal Investigator Basic analysis / Basic analysis / 解析学 / Basic Section 12020:Mathematical analysis-related / Global analysis Except Principal Investigator Global analysis / Basic analysis / 解析学 / Basic analysis / Geometry … More / Geometry / Fundamental theory of informatics / Global analysis / General mathematics (including Probability theory/Statistical mathematics) Less
Keywords	Principal Investigator 楕円型方程式 / 固有値問題 / 常微分方程式 / 振動 / eigenvalue problem / 漸近挙動 / 正値解 / 準線形常微分方程式 / elliptic equation / 準線形 … More / 自己相似解 / positive solution / oscillation / Sturm-Liouville problem / 解の対称性 / 漸近解析 / Karamata関数 / 高階常微分方程式 / 楕円型偏微分方程式 / ordinary differential equations / parabolic partial differential equation / polyharmonic function / variational problem / quasilinear / elliptic partial differential equation / 2階楕円型方程式 / 4階常微分方程式 / 3階常微分方程式 / 境界値問題 / 準線形楕円型方程式 / 振動性 / エムデン=ファウラー / 漸近的性質 / 多重調和関数 / 楕円型編微分方程式 / 放物型偏微分方程式 / 変分法 / quasilinear equation / 数理生物学 / 解の漸近挙動 / 変分固有値 / リューヴィル型定理 / スシルム・リューヴィユ問題 / 準線形方程式 / 固有値 / 楕円形方程式 / 非線形 / elliptic system / symmetry of solutions / Liouville-type theorem / degenerate Laplacian / 非線形固有値問題 / リューヴィユ型定理 / 非線形楕円型方程式 / 楕円型方程式系 / スツルム-リウヴィル系 / リウヴィル型定理 / 退化ラプラス作用素 / 競争系 / フーリエ解析 / 解の爆発 / 逆問題 / 波動方程式 / 退化ラプラシアン / 準線型偏楕円型方程式 / 関数微分方程式 / 退化ラプラス方程式 / 準線型常微分方程式 / カラマタ関数 / 準線型 / 極小曲面 / 全域解 / 準線形偏微分方程式 … More Except Principal Investigator 固有値問題 / 正値解 / 非線形 / 固有値 / 楕円型方程式 / 境界値問題 / 漸近解析 / 変分法 / 特異摂動 / 楕円型 / 重調和 / Liouville型定理 / 零点 / 高階微分方程式 / curvature / plethysm / 曲率 / Eigenvalue / Nonlinear / locations of blow up points / global blanch / Keller-Segel system / 関数空間 / 爆発点の位置 / 大域分枝 / 自己相似解 / Keller-Segel方程式系 / eigenvalue problem / positive solution / half-linear / ポテンシャル論 / ソボレフ関数 / 擬等角写像 / class number / canonical imbedding / rigidity / Gauss equation / symmetric space / submanifold / Riemannian manifold / 擬平坦数 / 射影空間 / 第2基本形式 / シンプレクティック群 / 第二基本形式 / 標準等長埋め込み / エルミート対称空間 / 等長埋め込み / クラス数 / 標準埋め込み / 剛性 / ガウス方程式 / 対称空間 / 部分多様体 / リーマン多様体 / poly-harmonic / eigenvalue problems / boundary value problems / heat equation / degenerate elliptic equation / quasilinear ODE / 終局正値解 / 大域的正値解 / 終局的正値解 / 準線形微分方程式 / 熱方程式 / 退化楕円型 / 準線形常微分方程式 / Interior behavior / Simple pendulum / Boundary layer / Singular perturbation / Variational methods / Asymptotic analysis / 変文法 / 内部挙動 / 単振り子 / 境界層 / variable exponent / Sobolev's theorem / function space / tangential boundary limits / monotone functions in the sense of Lebesgue / polyharmonic functions / partial differential equation / potential / 正則関数と擬等角写像 / ポテンシヤル / 楕円型偏微分方程式 / 孤立特異点 / ルベーグの単調関数 / Trudingerの不等式 / ソボレフの不等式 / 変動指数 / ソボレフの定理 / 接境界値の存在 / Lebesgueの単調関数 / 多調和関数 / 偏微分方程式 / ポテンシャル / radially symmetrical solution / Lieuville type theorem / elliptic equations / self-similar solution / Chirdress-Percus conjecture / 球対称性 / 解の爆発 / 楕円形方程式 / 半群理論 / 大腸菌コロニー / Harnack型不等式 / 大域分岐 / 粘菌形成方程式系 / 球対称解 / Lieuville型の定理 / 楕円型方程式解 / Childress-Percusの予想 / poly-harmonic operator / Liouville's theorem / zero / nonoscillatory solution / higher-order differential equation / nonlinear differential equation / 非振動解 / 非線形微分方程式 / decomposition formula / protective codimension / differential equation / Weil algebra / characteristic class / principal bundle / 平坦射影構造 / Littlewood-Richardsonの公式 / 母関数 / ヤング図形 / テンソル / 内在的微分 / 分解公式 / 射影余次元 / ヴェイユ代数 / 特性類 / 主バンドル / 微分方程式 / Ouantum random walk / Order-finding Problem / Ouantum Computer / MCMC method / Echelon form / Toric ideal / Groebner Basis / Contigency table / マルコフ基底 / 量子ランダムウォーク / Order-finding問題 / 量子コンピュータ / MCMC法 / エシェロン形式 / トーリックイデアル / グレブナ基底 / 分割表 / Variational Methods / Singular Perturbation / Asymptotic Analysis / Sobolev functions / oscllation problem / elliptic equation / chemotactic collapse / Self-similar solution / 双曲型方程式 / 大域解 / 爆発 / 振動解 / 楕円方程式 / 走化性解の崩壊 / singular boundary value problem / oscillation / 特異境界値問題 / 振動 / boundary behaviors / Elliptic partical differential equations / quasi-conformal mappings / Complex analysis / Potential theory / 境界値 / だ円型偏微分方程式 / 複素解析 / 優調和関数 / マルティン境界 / 調和空間 / 全域解 / 放物型偏微分方程式 / 楕円形偏微分方程式 / 多キュビット制御 / Tofforiゲート / Deutsch-Jozsaアルゴリズム / 位相的エンタングルメント / 量子計算 / Deutsch-Jozsa アルゴリズム / グローバーアルゴリズム / 位相的エンタングルメント / 量子エンタングルメント / 初期化アルゴリズム / 量子計算理論 / 準線型 / Emden-Fowler / 劣線形 / 振動理論 / 関数方程式 / 可解リー群 / ユニモジュラーリー群 / リッチテンソル / 慨平坦 / 平坦な射影構造 / 表現 / 不変式 / リー環 / リー群 / 左不変 / 平坦 / 射影構造 / 微分幾何 / 漸近挙動 / 函数方程式論 / 関数方程式論 / 容量 / 調和関数 / ファトウの定理 / 実験計画法 / 疫学データ / 漸近理論 / しきい値法 / 空間パターン / 最大疑似尤度推定量 / 統計的推測理論 / 空間データ Less

Asymptotic analysis of quasilinear ordinary differential equations and its application to partial differential equationsPrincipal Investigator
- Principal Investigator
  
  宇佐美広介
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12020:Mathematical analysis-related
- Research Institution
  Gifu University
Asymptotic Analysis of quasilinear ordinary differential equations and its application to asymptotic analysis of elliptic equationsPrincipal Investigator
- Principal Investigator
  
  USAMI Hiroyuki
- Project Period (FY)
  2011 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Gifu University
A mathematical and informatics research of combinatorial optimization algorithms in the quantum computing and the quantum entanglement
- Principal Investigator
  
  SAWAE Ryuichi
- Project Period (FY)
  2009 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Okayama University of Science
Characterization of homogeneous spaces admitting flat geometric structures by means of invariants
- Principal Investigator
  
  AGAOKA Yoshio
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Hiroshima University
Oscillation theory and singular boundary value problems for higher-order ordinary differential equations
- Principal Investigator
  
  NAITO Manabu
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Ehime University
Asymptotic Analysis of nonlinear ordinary differential equations and its applicationsPrincipal Investigator
- Principal Investigator
  
  USAMI Hiroyuki
- Project Period (FY)
  2005 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Hiroshima University
Asymptotic analysis of the nonlinear elliptic eigenvalue problems
- Principal Investigator
  
  SHIBATA Tetsutaro
- Project Period (FY)
  2005 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  Hiroshima University
Isometric imbeddings of Riemannian manifolds and their rigidity
- Principal Investigator
  
  AGAOKA Yoshio
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Hiroshima University
Boundary value problems for higher-order nonlinear ordinary differential equations
- Principal Investigator
  
  NAITO Manabu
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  EHIME UNIVERSITY
Potential Analysis for Sobolev functions
- Principal Investigator
  
  MIZUTA Yoshihiro
- Project Period (FY)
  2002 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  HIROSHIMA UNIVERSITY
Asymptotic analysis of nonlinear ordinary differential equations and its applicationsPrincipal Investigator
- Principal Investigator
  
  USAMI Hiroyuki
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  HIROSHIMA UNIVERSITY
Analysis on the nonlinear elliptic eigenvalue problems
- Principal Investigator
  
  SHIBATA Tetsutaro
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  HIROSHIMA UNIVERSITY
Characterization of curvatures by differential equations
- Principal Investigator
  
  AGAOKA Toshio
- Project Period (FY)
  2001 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Hiroshima University
Study on the number of zeros of solutions to higher-order nonlinear differential equations
- Principal Investigator
  
  NAITO Manabu
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  EHIME UNIVERSITY
Structure of solutions to the system of equations describing chemotactic aggregation of cellular slime molds
- Principal Investigator
  
  YOSHIDA Kiyoshi
- Project Period (FY)
  2001 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  HIROSHIMA UNIVERSIlY
Asymptotic analysis of ordinary differential equations, and its application to partial differential equationsPrincipal Investigator
- Principal Investigator
  
  USAMI Hiroyuki
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  HIROSHIMA UNIVERSITY
Research on the nonlinear elliptic eigenvalue problems by variational methods
- Principal Investigator
  
  SHIBATA Tetsutaro
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  HIROSHIMA UNIVERSITY
Groebner basis of toric ideals on lattices and its applications to mathematical physics
- Principal Investigator
  
  SAWAE Ryuichi
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  Okayama University of science
Oscillatory properties of solutions of higher order differential equations
- Principal Investigator
  
  NAITO Manabu
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  EHIME UNIVERSITY
Structure of solutions to Keller-Segel system
- Principal Investigator
  
  YOSHIDA Kiyoshi
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  HIROSHIMA UNIVERSITY
Potential the Oretic study on quasi-regular mappings
- Principal Investigator
  
  MIZUTA Yoshihiro
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  Hiroshima University
Studies on Eigenvalue Problems of Nonlinear Elliptic EquationsPrincipal Investigator
- Principal Investigator
  
  USAMI Hiroyuki, 柴田徹太郎
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Global analysis
- Research Institution
  Hiroshima University
Qualitative studies of solutions to elliptic equations in unbounded domainsPrincipal Investigator
- Principal Investigator
  
  USAMI Hiroyuki
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Hiroshima University
微分方程式の解の漸近的性質
- Principal Investigator
  
  SHIBATA Tetsutaro
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Hiroshima University
擬等角写像の境界挙動に関する研究
- Principal Investigator
  
  MIZUTA Yoshihiro
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Hiroshima University
非有界領域における準線形楕円型方程式の解の漸近的性質についてPrincipal Investigator
- Principal Investigator
  
  宇佐美広介
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  解析学
- Research Institution
  Hiroshima University
ギブス点過程モデルによる空間データの統計的推測理論の研究
- Principal Investigator
  
  間瀬茂
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Hiroshima University
偏微分方程式の解の挙動に関するポテンシャル論的研究
- Principal Investigator
  
  前田文之
- Project Period (FY)
  1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Hiroshima University

All 2022 2021 2015 2014 2013 2012 2011 2009 2008 2007 2006 2005 Other

All Journal Article Presentation

[Journal Article] On the existence and asymptotic behavior of solutions of half-linear ordinary differential equations2022
- Author(s)
  Manabu Naito and Hiroyuki Usami
- Journal Title
  
  J. Differential Equations
  
  Volume: 318 Pages: 359-383
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K03307
[Journal Article] Singular strongly increasing solutions of higher-order quasilinear ordinary differential equations2021
- Author(s)
  Manabu Naito and Hiroyuki Usami
- Journal Title
  
  Mem. Differ. Equ. Math. Phys.
  
  Volume: 84 Pages: 99-112
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K03307
[Journal Article] Application of generalised Riccati equations to analysis of asymptotic forms of solutions of perturbed half-linear ordinary differential equations2021
- Author(s)
  Sokea Luey and Hiroyuki Usami
- Journal Title
  
  Int. J. Dyn. Syst. Differ. Equ.
  
  Volume: 11 Pages: 378-390
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K03307
[Journal Article] Asymptotic forms of solutions of perturbed half-linear ordinary differential equations2021
- Author(s)
  Sokea Luey and Hiroyuki Usami
- Journal Title
  
  Arch. Math. (Brno)
  
  Volume: 57 Pages: 27-39
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K03307
[Journal Article] Determination of a nonlinearity from blow-up time2014
- Author(s)
  Y. Kamimura and H. Usami
- Journal Title
  
  Proc. Japan Acad. Ser A
  
  Volume: 90 Pages: 127-132
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-23540196
[Journal Article] 逆爆発時刻問題2013
- Author(s)
  宇佐美広介，上村豊
- Journal Title
  
  日本数学会　秋季総合分科会　函数方程式論分科会アブストラクト
  
  Volume: なし Pages: 36-37
- Data Source
  KAKENHI-PROJECT-23540196
[Journal Article] Existence of solutions of integral equations related to inverse problems of quasilinear ordinary differential equations2012
- Author(s)
  H. Usami, and Y. Takuro
- Journal Title
  
  Mem. Differntial Equations Math. Phys.
  
  Volume: 57 Pages: 163-176
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540196
[Journal Article] Rectifiable oscillations of radially symmetric solutions of p-Laplace differential equations2012
- Author(s)
  Y. Naito, M. Pasic, and H. Usami
- Journal Title
  
  Differential Equations and Applications
  
  Volume: 4 Pages: 11-25
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540196
[Journal Article] Rectifiable oscillations of radially symmetric solutions of p-Laplace differential equations2011
- Author(s)
  Yuki Naito, mervan pasic, and Hiroyuki Usami
- Journal Title
  
  Differential Equations and Applications
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540196
[Journal Article] Applications of Riccati-type inequalities to asymptotic theory of elliptic problems2009
- Author(s)
  Hiroyuki Usami
- Journal Title
  
  Proceedings of the Royal Society of Edinburgh: Section A Mathematics
  
  Volume: 139 Pages: 1071-1089
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500024
[Journal Article] Applications of Riccati-type inequalities to asymptotic theory of elliptic problems2009
- Author(s)
  Hiroyuki Usami
- Journal Title
  
  Proceedings of the Royal Society of Edinburgh : Section A Mathematics Vol.139
  
  Pages: 1071-1089
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500024
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] On positive decaying solutions of quasilinear ordinary differential equations with singular nonlinearities2008
- Author(s)
  Misako Motai, Hiroyuki USAMI
- Journal Title
  
  Funkcialaj Ekvacioj 51
  
  Pages: 39-53
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[Journal Article] Asymptotic forms of positive solutions of quasi linear ordinary differential equations with singular nonlinearities2008
- Author(s)
  Ken-ichi Kamo, Hiroyuki USAMI
- Journal Title
  
  Nonlinear Analysis : Theory, Methods & Applications 68
  
  Pages: 1627-1639
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] On positive decaying solutions of quasilinear ordinary differential equations with singular nonlinearities2008
- Author(s)
  Misako Motai, Hiroyuki Usami
- Journal Title
  
  Funkcialaj Ekvacioj 5 1
  
  Pages: 39-53
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Positive unbounded solutions of second order quasilinear ordinary differential equations and its application to elliptic problems2008
- Author(s)
  加茂憲一、宇佐美広介
- Journal Title
  
  Czechoslovak Mathematical Journal 58巻
  
  Pages: 1153-1165
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Asymptotic forms of positive solutions of quasilinear ordinary differential equations with singular nonlinearities2008
- Author(s)
  加茂憲一、宇佐美広介
- Journal Title
  
  Nonlinear Analysis : Theory, Methods & Applications 68 巻
  
  Pages: 1627-1639
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[Journal Article] Asymptotic forms of positive solutions of quasilinear ordinary differential equations with singular nonlinearities2008
- Author(s)
  Ken-ichi Kamo, Hiroyuki Usami
- Journal Title
  
  Nonlinear Analysis, Theory Methods & Applications 6 8
  
  Pages: 1627-1639
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Positive unbounded solutions of second order quasilinear ordinary differential equations and its application to elliptic problems2008
- Author(s)
  Ken-ichi Kamo, Hiroyuki USAMI
- Journal Title
  
  Czechoslovak Mathematical Journal 58
  
  Pages: 1153-1165
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[Journal Article] Positive unbounded solutions of second order quasilinear ordinary differential equations and its application to elliptic problems2008
- Author(s)
  K. Kamo, H. Usami
- Journal Title
  
  Czechoslovak Math. J. 58 no.4
  
  Pages: 1153-1165
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540196
[Journal Article] On positive decaying solutions of quasilinear ordinary differential equations with singular nonlinearities2008
- Author(s)
  馬渡美佐子、宇佐美広介
- Journal Title
  
  Funkcialaj Ekvacioj 51巻
  
  Pages: 39-53
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Oscillation theorems of quasilinear elliptic equations with arbitrary nonlinearities2007
- Author(s)
  T. Teramoto, H. Usami
- Journal Title
  
  Differential and Integral Equations 20no.5
  
  Pages: 577-600
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540196
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Asymptotic forms of positive solutions of second-order quasilinear ordinary differential equations2006
- Author(s)
  H.Usami
- Journal Title
  
  Adv. Math. Sci. Appl. (印刷中)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14340046
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Existence of nonoscillatory solutions to second-order elliptic systems of Emden-Fowler type2006
- Author(s)
  Manabu NAITO, Hiroyuki USAMI
- Journal Title
  
  Indiana University Mathematics Journal 55(1)
  
  Pages: 317-339
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340048
[Journal Article] Existence of nonoscillatory solutions to second-order elliptic systems of Emden-Fowler type2006
- Author(s)
  Manabu NAITO, Hiroyuki USAMI
- Journal Title
  
  Indiana University Mathematics Journal 55・1
  
  Pages: 317-339
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340048
[Journal Article] Asymptotic forms of positive solutions of second-order quasilinear ordinary differential equations2006
- Author(s)
  H.Usami
- Journal Title
  
  Adv. Math. Sci. Appl. (in press)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14340046
[Journal Article] Existence of nonoscillatory solutions to second-order elliptic systems of Emden-Fowler type2006
- Author(s)
  M. Naito, H. Usami
- Journal Title
  
  Indiana Univ. Math. J. 55 no.1
  
  Pages: 317-339
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540196
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Application of Riccati-type inequalities to asymptotic theory of elliptioc problems
- Author(s)
  Hiroyuki USAMI
- Journal Title
  
  Proceedings of the Royal Society of Edinburgh : Section A Mathematics (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[Journal Article] Application of Riccati-type inequalities to asymptotic theory of elliptic problems
- Author(s)
  Hiroyuki Usami
- Journal Title
  
  Proceedings of Royal Society of Edinburgh (Sect A) (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] On positive decaying solutions of quasilinear ordinary differential equations with singular nonlinearities
- Author(s)
  M. Motai and H. Usami
- Journal Title
  
  Funkcialaj Ekvacioj (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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)
- Data Source
  KAKENHI-PROJECT-17540159
[Journal Article] Existence of nonoscillatory solutions to second-order elliptic systems of Emden-Fowler type
- Author(s)
  Manabu NAITO, Hiroyuki USAMI
- Journal Title
  
  Indiana University Mathematics Journal (To appear)
- Data Source
  KAKENHI-PROJECT-15340048
[Journal Article] Application of Riccatitype inequalities to asymptotic theory of elliptioc problems
- Author(s)
  宇佐美広介
- Journal Title
  
  Proceedings of the Royal Society of Edinburgh : Section A Mathematics (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[Journal Article] Existence of nonoscillatory solutions to second-order elliptic systems of Emden-Fowler type
- Author(s)
  M.Naito, H.Usami
- Journal Title
  
  Indiana Univ.Math.J. (印刷中)
- Data Source
  KAKENHI-PROJECT-14340046
[Journal Article] Positive unbounded solutions of second order quasilinear ordinary differential equations and its application to elliptic problems
- Author(s)
  K. Kamo and H. Usami
- Journal Title
  
  Czechoslovak Mathematical Journal (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540188
[Presentation] 摂動された半分線形常微分方程式の解の存在と漸近挙動について2022
- Author(s)
  宇佐美　広介，　内藤　学
- Organizer
  日本数学会　年会
- Data Source
  KAKENHI-PROJECT-21K03307
[Presentation] Asymptotic forms of solutions of perturbed half-linear ordinary differential equations2021
- Author(s)
  宇佐美　広介，　ソケア　ルイ
- Organizer
  日本数学会　秋季総合分科会
- Data Source
  KAKENHI-PROJECT-21K03307
[Presentation] ある Lanchester 型モデルの解の漸近挙動2015
- Author(s)
  宇佐美広介，　チャン　ティ　フェン　チャン
- Organizer
  日本数学会年会
- Place of Presentation
  明治大学（東京都）
- Year and Date
  2015-03-21
- Data Source
  KAKENHI-PROJECT-23540196
[Presentation] 常微分方程式の双曲型方程式への応用2014
- Author(s)
  宇佐美広介
- Organizer
  日本数学会年会
- Place of Presentation
  広島大学（東広島市）
- Year and Date
  2014-09-25
- Data Source
  KAKENHI-PROJECT-23540196
[Presentation] 逆爆発問題の大域解2014
- Author(s)
  上村豊，宇佐美広介
- Organizer
  日本数学会年会
- Place of Presentation
  広島大学（東広島市）
- Year and Date
  2014-09-25
- Data Source
  KAKENHI-PROJECT-23540196
[Presentation] 変数係数はどう方程式のフーリエ級数を用いた解析2014
- Author(s)
  宇佐美広介，　髙木賢司
- Organizer
  振動理論ワークショプーー金沢２０１４
- Place of Presentation
  金沢大学
- Data Source
  KAKENHI-PROJECT-23540196
[Presentation] 逆爆発時刻問題2013
- Author(s)
  宇佐美広介，上村豊
- 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
  愛媛大学
- Data Source
  KAKENHI-PROJECT-23540196
[Presentation] Inverse Problems for blow-up times2013
- Author(s)
  Hiroyuki Usami
- Organizer
  Workshop on Differential Equations in Gifu2013
- Place of Presentation
  岐阜大学
- Data Source
  KAKENHI-PROJECT-23540196
[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2009 年度年会(春の学会)
- Place of Presentation
  東京大学駒場キャンパス
- Year and Date
  2009-03-26
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Place of Presentation
  東京都目黒区
- Year and Date
  2009-03-26
- Data Source
  KAKENHI-PROJECT-17540159
[Presentation] Asymptotic forms of slowly decaying solutions of quasilinear ordinary differential equations with critical exponents2009
- Author(s)
  Hiroyuki Usami
- Organizer
  EQUADIFF 12
- Place of Presentation
  Brno, Czech Republic
- Year and Date
  2009-07-20
- Data Source
  KAKENHI-PROJECT-21500024
[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2009年度年会(春の学会)
- Place of Presentation
  東京大学駒場キャンパス
- Year and Date
  2009-03-26
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Presentation] Asymptotic forms of slowly decaying solutions of quasilinear ordinary differential equations withcritical exponents2009
- Author(s)
  Hiroyuki Usami
- Organizer
  EQUADIFF 12
- Place of Presentation
  Brno Czech Republic.
- Year and Date
  2009-07-20
- Data Source
  KAKENHI-PROJECT-21500024
[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2008年度年会
- Place of Presentation
  近畿大学
- Year and Date
  2008-03-23
- Data Source
  KAKENHI-PROJECT-17540196
[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2008年度年会
- Place of Presentation
  近畿大学本部キャンパス
- Year and Date
  2008-03-23
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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2008 年度年会(春の学会)
- Place of Presentation
  近畿大学本部キャンパス
- Year and Date
  2008-03-23
- Data Source
  KAKENHI-PROJECT-19540188
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Place of Presentation
  東北大学
- Year and Date
  2007-09-21
- Data Source
  KAKENHI-PROJECT-17540196
[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
- Organizer
  日本数学会秋季総合分科会
- Place of Presentation
  東北大学
- Year and Date
  2007-09-21
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Data Source
  KAKENHI-PROJECT-17540159
[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
- Data Source
  KAKENHI-PROJECT-17540159
[Presentation] Existence of solutions of integral equations related to inverse problems of quasilinear ordinary differential equations
- Author(s)
  宇佐美広介
- Organizer
  偏微分方程式の逆問題とその周辺に関する研究
- Place of Presentation
  京都大学数理解析研究所
- Invited
- Data Source
  KAKENHI-PROJECT-23540196
[Presentation] Global asymptotic stability in a two-species nonautonomous competition system
- Author(s)
  宇佐美広介
- Organizer
  京都大学数理解析研究所(招待講演)
- Place of Presentation
  京都大学
- Data Source
  KAKENHI-PROJECT-23540196

1. YOSHIDA Kiyoshi (80033893)

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Usami Hiroyuki 宇佐美 広介

宇佐美 広介 ウサミ ヒロユキ

USAMI Hiroyuki 宇佐美 広介

宇佐見 広介 ウサミ ヒロユキ

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Co-Researchers

Asymptotic analysis of quasilinear ordinary differential equations and its application to partial differential equationsPrincipal Investigator

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Asymptotic Analysis of quasilinear ordinary differential equations and its application to asymptotic analysis of elliptic equationsPrincipal Investigator

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Asymptotic Analysis of nonlinear ordinary differential equations and its applicationsPrincipal Investigator

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Asymptotic analysis of nonlinear ordinary differential equations and its applicationsPrincipal Investigator

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Usami Hiroyuki 宇佐美広介

宇佐美広介ウサミヒロユキ

USAMI Hiroyuki 宇佐美広介

宇佐見広介ウサミヒロユキ