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OHTA Yasuhiro
Graduate School of Science / Division of Mathematics
Professor

Researcher basic information

■ Research Keyword
  • Applied mathematics
■ Research Areas
  • Natural sciences / Applied mathematics and statistics
  • Natural sciences / Basic mathematics

Research activity information

■ Paper
  • Discrete and ultradiscrete periodic phase soliton equations
    Yasuhiro OHTA, H. Nagai, R. Hirota
    Mar. 2019, J. Phys.Soc. Jpn, 88, 034001 - 1-034001-10, English
    [Refereed]
    Scientific journal

  • Yasuhiro OHTA, J. Chen, B.-F. Feng, K. Maruno
    Aug. 2018, Stud. Appl. Math, 141(2) (2), 145 - 185, English
    [Refereed]
    Scientific journal

  • N-bright-dark soliton solution to a semi-discrete vector nonlinear Schrödinger equation
    B.-F. Feng, Yasuhiro OHTA
    Sep. 2017, SIGMA Symmetry Integrability Geom. Methods Appl, 13, 071, English
    [Refereed]
    Scientific journal
    Link to Kobe Univ. Repository (Kernel)

  • B.-F. Feng, K. Maruno, Yasuhiro OHTA
    Aug. 2017, Annal. Math. Sci. Appl, 2(2) (2), 285 - 316, English
    [Refereed]
    Scientific journal

  • Bao-Feng Feng, Ken-Ichi Maruno, Yasuhiro Ohta
    Apr. 2017, STUDIES IN APPLIED MATHEMATICS, 138(3) (3), 343 - 367, English
    [Refereed]
    Scientific journal

  • An integrable semi-discrete Degasperis-Procesi equation
    B.-F. Fen, K. Maruno, Yasuhiro OHTA
    Apr. 2017, Nonlinearity, 30, 2246 - 2267, English
    [Refereed]
    Scientific journal

  • A two-component generalization of the reduced Ostrovsky equation and its integrable semi-discrete analogue
    B.-F. Feng, K. Maruno, OHTA Yasuhiro
    Feb. 2017, J. Phys. A: Math. Theor., 50, 055201 - 1–055201-15., English
    [Refereed]
    Scientific journal

  • Shoufeng Shen, Bao-Feng Feng, Yasuhiro Ohta
    2017, JOURNAL OF NONLINEAR MATHEMATICAL PHYSICS, 24(2) (2), 195 - 209, English
    [Refereed]
    Scientific journal

  • An integrable semi-discretization of the coupled Yajima-Oikawa system
    J. Chen, Y. Chen, B.-F. Feng, K. Maruno, OHTA Yasuhiro
    Mar. 2016, J. Phys. A: Math. Theor., 49, 165201 - 1–165201-19, English
    [Refereed]
    Scientific journal

  • From the real and complex coupled dispersionless equations to the real and complex short pulse equations
    S. Shen, B.-F. Feng, OHTA Yasuhiro
    Jan. 2016, Stud. Appl. Math., 136, 64–88, English
    [Refereed]
    Scientific journal

  • Integrable discretizations and self-adaptive moving mesh method for a coupled short pulse equation
    Bao-Feng Feng, Junchao Chen, Yong Chen, MARUNO Kenichi, OHTA Yasuhiro
    Aug. 2015, J. Phys. A: Math. Theor., 48, 385202 - 1--385202-21, English
    [Refereed]
    Scientific journal

  • Integrable semi-discretization of a multi-component short pulseequation
    OHTA Yasuhiro, MARUNO Kenichi, Bao-Feng Feng
    Apr. 2015, J. Math. Phys., 56, 043502 - 1--043502-15, English
    [Refereed]
    Scientific journal

  • Integrable semi-discretizations of the reduced Ostrovsky equation
    OHTA Yasuhiro, MARUNO Kenichi, Bao-Feng Feng
    Mar. 2015, J. Phys. A: Math. Theor, 48, 135203 - 1--135203-20, English
    [Refereed]
    Scientific journal

  • General rogue waves in the focusing and defocusing Ablowitz-Ladik equations
    OHTA Yasuhiro, Yang Jianke
    Jun. 2014, J. Phys. A: Math. Theor., 47, 255201 - 1--255201-23, English
    [Refereed]
    Scientific journal

  • Discrete mKdV and discrete sine-Gordon flows on discrete space curves
    OHTA Yasuhiro, INOGUCHI Junichi, KAJIWARA Kenji, MATSUURA Nozomu
    May 2014, J. Phys. A: Math. Theor., 47, 235202 - 1--235202-26, English
    [Refereed]
    Scientific journal

  • Bao-Feng Feng, Jun-ichi Inoguchi, Kenji Kajiwara, Ken-ichi Maruno, Yasuhiro Ohta
    Oct. 2013, FRONTIERS OF MATHEMATICS IN CHINA, 8(5) (5), 1017 - 1029, English
    [Refereed]
    Scientific journal

  • Dynamics of rogue waves in the Davey-Stewartson II equation
    Y.~Ohta, J.~Yang
    Feb. 2013, J. Phys. A: Math. Theor, (46) (46), 105202 - 1--105202-19, English
    [Refereed]
    Scientific journal

  • On the τ-Functions ofthe Degasperis-Procesi Equation
    OHTA yasuhiro, Bao-F. Feng, Kenichi Maruno
    Jan. 2013, J. Phys. A: Math. Theor., 46, English
    [Refereed]
    Scientific journal

  • On the $\tau$-functions of the reduced Ostrovsky equation and the $A_2^{(2)}$ two-dimensional Toda system
    Y.~Ohta, B, F.~Feng, K.~Maruno
    Aug. 2012, J. Phys. A: Math. Theor, (45) (45), 355203 - 1--355203-15, English
    [Refereed]
    Scientific journal

  • Topics of Discrete Soliton Equations (in Japanese)
    Y.~Ohta
    Jul. 2012, RIMS Kokyuroku Bessatsu, (B30) (B30), 137 - 143, English
    [Refereed]
    Scientific journal

  • General High-Order Rogue Waves and Their Dynamics in the Nonlinear Schr"odinger Equation
    Y.~Ohta, J.~Yang
    Jun. 2012, Proc. R. Soc. A, (468) (468), 1716 - -1740,, English
    [Refereed]
    Scientific journal

  • Explicit solutions to the semi-discrete modified KdV equation and motion of discrete plane curves
    OHTA Yasuhiro, J. Inoguchi, K. Kajiwara, N. Matsuura
    Feb. 2012, J. Phys. A: Math. Theor., Vol 45, 045206-1-045206-16, English
    [Refereed]
    Scientific journal

  • General N-dark-dark solitons in the coupled nonlinear Schrödinger equations
    OHTA Yasuhiro, D.-S. Wang, J. Yang
    Nov. 2011, Stud. Appl. Math., Vol 127, pp. 345-371, English
    [Refereed]
    Scientific journal

  • Discrete integrable systems and hodograph transformations arising from motions of discrete plane curves
    OHTA Yasuhiro, B.-F. Feng, J. Inoguchi, K. Kajiwara, K. Maruno
    Sep. 2011, J. Phys. A: Math. Theor., Vol 44, 395201-1-395201-19, English
    [Refereed]
    Scientific journal

  • A self-adaptive moving mesh method for the Camassa-Holm equation
    OHTA Yasuhiro, B.-F. Feng, K. Maruno
    Nov. 2010, J. Comput. Appl. Math., Vol 235. pp. 229-243, English
    [Refereed]
    Scientific journal

  • Integrable discretizations for the short-wave model of the Camassa-Holm equation
    OHTA Yasuhiro, B.-F. Feng, K. Maruno
    Jul. 2010, J. Phys. A: Math. Theor., Vol 43. 265202-1-265202-14, English
    [Refereed]
    Scientific journal

  • Integrable discretizations of the short pulse equation
    OHTA Yasuhiro, B.-F. Feng, K. Maruno
    Feb. 2010, J. Phys. A: Math. Theor., Vol 43, 085203-1-085203-14, English
    [Refereed]
    Scientific journal

  • Bilinearization and Casorati determinant solutions to non-autonomous 1+1 dimensional discrete soliton equations
    OHTA Yasuhiro, K. Kajiwara
    Oct. 2009, RIMS Kokyuroku Bessatsu, B13, pp. 53-73, English
    [Refereed]
    Scientific journal

  • Discretization of coupled nonlinear Schrödinger equations
    OHTA Yasuhiro
    May 2009, Stud. Appl. Math., Vol 122, pp. 427-447, English
    [Refereed]
    Scientific journal

  • An integrable semi-discretization of the Camassa-Holm equation and its determinant solution
    OHTA Yasuhiro, K. Maruno, B. -F. Feng
    Sep. 2008, J. Phys. A, Vol 41, 355205, English
    [Refereed]
    Scientific journal

  • Localized solitons of a (2+1)-dimensional nonlocal nonlinear Schrödinger equation
    OHTA Yasuhiro, K.Maruno
    Jun. 2008, Phys. Lett. A, Vol 372, pp. 4446-4450, English
    [Refereed]
    Scientific journal

  • Bilinearization and Casorati determinant solution to the non-autonomous discrete KdV equation
    OHTA Yasuhiro, K. Kajiwara
    Apr. 2008, J. Phys. Soc. Jpn., Vol 77, 054004, English
    [Refereed]
    Scientific journal

  • Quasideterminant solutions of a non-abelian Hirota-Miwa equation
    OHTA Yasuhiro, C. R. Gilson, J. J. C. Nimmo
    Oct. 2007, J. Phys. A, Vol 40, pp. 12607-12617, English
    [Refereed]
    Scientific journal

  • A remark on the Hankel determinant formula for solutions of the Toda equation
    OHTA Yasuhiro, K. Kajiwara, M. Mazzocco
    Oct. 2007, J. Phys. A, Vol 40, pp. 12661-12675, English
    [Refereed]
    Scientific journal

  • Two-component analogue of two-dimensional long wave-short wave resonance interaction equations: a derivation and solutions
    OHTA Yasuhiro, MARUNO Ken-ichi, OIKAWA Masayuki
    Jul. 2007, J. Phys. A, Vol 40, No. 27, pp. 7659-7672, English
    [Refereed]
    Scientific journal

  • A generalization of the discrete uc hierarchy and its reductions
    OHTA Yasuhiro
    May 2007, World Scientific, Singapore, pp. 471-479, English
    [Refereed]
    Scientific journal

  • Discretization of the new type of soliton equations
    OHTA Yasuhiro, R. Hirota
    Mar. 2007, J. Phys. Soc. Jpn., Vol 76, 034001, English
    [Refereed]
    Scientific journal

  • New type of soliton equations
    OHTA Yasuhiro, R. Hirota
    Feb. 2007, J. Phys. Soc. Jpn., Vol 76, 024005, English
    [Refereed]
    Scientific journal

  • Discrete systems related to the sixth Painlevé equation
    OHTA Yasuhiro, A. Ramani, B. Grammaticos
    Sep. 2006, J. Phys. A, Vol 39, pp. 12167-12178, English
    [Refereed]
    Scientific journal

  • Similarity reductions of Hirota bilinear equations and Painlevéequations
    OHTA Yasuhiro, K. M.Tamizhmani, B. Grammaticos, A.Ramani, T. Tamizhmani
    Jun. 2006, NATO Science Series II: Mathematics, Physics and Chemistry, Vol 201,, pp. 313 - 323, English
    [Refereed]
    Scientific journal

  • Discretization of a sine-Gordon type equation
    OHTA Yasuhiro
    Jun. 2006, NATO Science Series II: Mathematics, Physics and Chemistry, Vol 201,, pp. 225 - 230, English
    [Refereed]
    Scientific journal

  • Casorati determinant form of dark soliton solutions of the discrete nonlinear Schrödinger equation
    OHTA Yasuhiro, K. Maruno
    May 2006, J. Phys. Soc. Jpn., Vol 75, 054002, English
    [Refereed]
    Scientific journal

  • Point configurations, Cremona transformations and the elliptic difference Painlevé equation
    NOUMI Masatoshi, KAJIWARA Kenji, MASUDA Tetsu, OHTA Yasuhiro, YAMADA Yasuhiko
    2006, Séminaires et Congrès, Vol 14, pp. 169 - 198, English
    [Refereed]
    Scientific journal

  • Gram Type Pfaffian Solution to the Coupled Discrete KP Equation,
    LI C X, OHTA Yasuhiro
    2005, J. Phys., A 38, pp 1089—1095, English
    Scientific journal

  • Cubic pencils and Painlev´e Hamiltonians
    KAJIWARA K, MASUDA Tetsu, NOUMI Masatoshi, OHTA Yasuhiro, YAMADA Yasuhiko
    2005, Funkcial. Ekvac., vol 48, pp 147～160, English
    Scientific journal

  • Construction of hypergeometric solutions to the q-Painlevé equations
    KAJIWARA Kenji, MASUDA Tetsu, NOUMI Masatoshi, OHTA Yasuhiro, YAMADA Yasuhiko
    2005, IMRN, vol 24, pp 1439～1463, English
    Scientific journal

  • A unified description of the asymmetric q-P-V and d-P-IV equations and their Schlesinger transformations
    B Grammaticos, A Ramani, Y Ohta
    May 2003, JOURNAL OF NONLINEAR MATHEMATICAL PHYSICS, 10(2) (2), 215 - 228, English
    Scientific journal

  • The Space of Initial Conditions for Linearizable Mappings
    TAKENAWA T, EGUCHI M, GRAMMATICOS B, OHTA Yasuhiro, RAMANI A, SATSUMA J
    2003, Nonlinearity, 16, 457-477, English
    Scientific journal

  • Sasa-Satsuma High-order Nonlinear Schrodinger Equation and Its Bilinearization and Multisoliton Solutions
    GILSON C, HIETARINTA J, NIMMO H, OHTA Yasuhiro
    2003, Phys. Rev., E, 68, 016644, English
    Scientific journal

  • Exact Localized Solutions of Quintic Discrete Noninear Schrodinger Equation
    MARUNO K, OHTA Yasuhiro, JOSHI N
    2003, Phys. Lett., A, 311, 214-220, English
    Scientific journal

  • 10E9 solution to the elliptic Painleve equation
    KAJIWARA Kenji, MASUDA Tetsu, NOUMI Masatoshi, OHTA Yasuhiro, YAMADA Yasuhiko
    2003, J. Phys. A: Math Gen., 36, L263-272, English
    Scientific journal

■ MISC
  • 可積分系におけるrogue wave 解の数理的構造
    Yasuhiro OHTA
    Jul. 2018, 数理解析研究所講究録,「非線形波動現象の数理とその応用」, 2076, 197 - 202, Japanese
    Meeting report

  • Modified Short Pulse 方程式の自己適合移動格子スキーム
    徐俊庭, 丸野健一, Feng Bao-Feng, Yasuhiro OHTA
    Jul. 2017, 数理解析研究所講究録「非線形波動現象の数理とその応用」, 2034, 150 - 165, Japanese
    Meeting report

  • A geometric description of the elliptic Painlev´e equation
    KAJIWARA K, MASUDA Tetsu, NOUMI Masatoshi, OHTA Yasuhiro, YAMADA Yasuhiko
    2005, Rokko Lectures in Mathematics 18 Elliptic integrable systems, English
    Introduction scientific journal
    Link to Kobe Univ. Repository (Kernel)

■ Lectures, oral presentations, etc.
  • 二次元定常流に対するオイラー方程式の離散化について
    Yasuhiro OHTA
    研究集会「非線形海洋波の数理の最近の進展」, Mar. 2019, Japanese, 那須, 日本, Domestic conference
    [Invited]
    Invited oral presentation

  • Lump solitons generated by instability of line soliton for KPI equation
    Yasuhiro OHTA, Y. Watanabe, Y. Tanaka, K. Maruno
    AMS Sectional Meeting AMS Special Session, Spring Central and Western Joint Sectional Meeting, Mar. 2019, English, Honolulu, USA, International conference
    [Invited]
    Invited oral presentation

  • 可積分系及び関連する話題
    Yasuhiro OHTA
    研究集会「可積分系ウィンターセミナー」, Dec. 2018, Japanese, 本庄, 日本, Domestic conference
    [Invited]
    Invited oral presentation

  • Periodic phase solitons for discrete and ultradiscrete equations
    Yasuhiro OHTA
    Scientific Gathering,Integrable systems and beyond, Dec. 2018, English, Cuernavaca, Mexico, International conference
    [Invited]
    Invited oral presentation

  • Periodic phase solitons for discrete and ultradiscrete equations
    Yasuhiro OHTA
    JSPS US AA Seminar Program 2018, 「Recent development in continuous and discrete integrable systems」, Nov. 2018, English, Edinburg, USA, International conference
    [Invited]
    Invited oral presentation

  • Time-localized solutions for some soliton equations
    Yasuhiro OHTA
    Workshop on Nonlinear Water Waves, May 2018, English, Kyoto, Japan, International conference
    [Invited]
    Invited oral presentation

  • ソリトン方程式の時間的局在解について
    Yasuhiro OHTA
    非線形海洋波の数理の展望, Mar. 2018, Japanese, 鹿児島大学, Domestic conference
    [Invited]
    Invited oral presentation

  • DKP hierarchy and its Pfaffian solutions
    Yasuhiro OHTA
    Scientific Gathering, New phenomena in discrete integrable systems, Dec. 2017, English, Cuernavaca, Mexico, International conference
    [Invited]
    Invited oral presentation

  • Discretization of the Lagrange top
    Yasuhiro OHTA
    Scientific Gathering, New phenomena in discrete integrable systems,, Dec. 2017, English, Cuernavaca, Mexico, International conference
    [Invited]
    Invited oral presentation

  • 可積分系におけるrogue wave 解の数理的構造
    Yasuhiro OHTA
    RIMS 共同研究(公開型)「非線形波動現象の数理とその応用」, Oct. 2017, Japanese, 京都大学数理解析研究所, Domestic conference
    [Invited]
    Invited oral presentation

  • Semi-discrete analogues of the complex short pulse and coupled complex short pulse equations based on the KP hierarchy reduction
    Baofeng Feng, Yasuhiro OHTA
    AMS Sectional Meeting (Fall Central Sectional Meeting), Sep. 2017, English, Denton, USA, International conference
    Oral presentation

  • Jeu de taquin と超離散戸田方程式
    筧三郎, 上岡修平, Yasuhiro OHTA
    日本応用数理学会2017 年度年会, [研究部会OS] 応用可積分系, Sep. 2017, Japanese, 武蔵野大学有明キャンパス, Domestic conference
    Oral presentation

  • Regular and finite time blowup solutions for discrete integrable equations
    Ohta Yasuhiro
    The Tenth IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Mar. 2017, English, Athens, USA, International conference
    [Invited]
    Invited oral presentation

  • dNLS flow on discrete space curves
    Sampei Hirose, Jun-Ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, Ohta Yasuhiro
    The Tenth IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Mar. 2017, English, Athens, USA, International conference
    [Invited]
    Invited oral presentation

  • Modified short pulse 方程式の可積分自己適合移動格子スキーム
    徐俊庭, Maruno Kenichi, Feng Bao-Feng, Ohta Yasuhiro
    日本応用数理学会 2016 年度年会, Sep. 2016, Japanese, 北九州国際会議場, Domestic conference
    Oral presentation

  • Jeu de taquin slide と離散 2 次元戸田方程式
    筧 三郎, 上岡修平, 片山陽介, Ohta Yasuhiro
    日本数学会 2016 年度秋季総合分科会, Sep. 2016, Japanese, kansai University, Domestic conference
    Oral presentation

  • Integrable motion of space curve and its determinant expressions
    Ohta Yasuhiro
    日本応用数理学会 2016年度年会, [JSIAM-ANZIAM 特別 OS] 応用可積分系, Sep. 2016, English, 北九州国際会議場, International conference
    [Invited]
    Invited oral presentation

  • A parametrization of orthonormal frame and its determinant expression
    Ohta Yasuhiro
    The Third China-Japan Joint Workshop on Integrable Systems 2016, Aug. 2016, English, Xi’an, China, International conference
    [Invited]
    Invited oral presentation

  • Rogue wave solutions for discrete soliton equations
    Ohta Yasuhiro
    The Fourth International Conference, Nonlinear Waves - Theory and Applications, Jun. 2016, English, Beijing, China, International conference
    [Invited]
    Invited oral presentation

  • 四元数 Pfaffian について
    Ohta Yasuhiro
    研究会「応用解析研究会～可積分系から計算数学まで～」, May 2016, Japanese, 天満研修センター, 旧桜宮公会堂, Domestic conference
    [Invited]
    Invited oral presentation

  • Localized solutions for soliton equations and their algebraic structure
    Ohta Yasuhiro
    RIMS 共同研究「Mini- Workshop on Nonlinear Waves in Fluids」, May 2016, English, RIMS, RIMS, International conference
    [Invited]
    Invited oral presentation

  • Quaternion Pfaffian — an extension of quaternion determinant
    Ohta Yasuhiro
    Discrete Integrable Sys-tems Workshop 2016, Apr. 2016, English, Sanya, China, International conference
    [Invited]
    Invited oral presentation

  • 離散空間曲線の運動に対する行列式解とPfaffian解
    OHTA Yasuhiro, Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura
    日本数学会2016年度年会, Mar. 2016, Japanese, 筑波, 日本, Domestic conference
    Oral presentation

  • 空間離散曲線の等距離等周変形 II: 渦糸方程式の離散化との関係
    Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, OHTA Yasuhiro
    日本応用数理学会2016年研究部会連合発表会, Mar. 2016, Japanese, 神戸, 日本, Domestic conference
    Oral presentation

  • 空間離散曲線の等距離等周変形 I: lattice Landau-Lifschitz方程式による変形
    Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, OHTA Yasuhiro
    日本応用数理学会2016年研究部会連合発表会, Mar. 2016, Japanese, 神戸, 日本, Domestic conference
    Oral presentation

  • 渦糸方程式の離散化
    Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, OHTA Yasuhiro
    日本数学会2016年度年会, Mar. 2016, Japanese, 筑波, 日本, Domestic conference
    Oral presentation

  • Hunter-Saxton方程式の自己適合移動格子スキーム
    SASAKI Hirofumi, MARUNO Kenichi, Feng Bao-Feng, OHTA Yasuhiro
    日本応用数理学会2016年研究部会連合発表会, Mar. 2016, Japanese, 神戸, 日本, Domestic conference
    Oral presentation

  • 渦糸方程式の離散化
    Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, OHTA Yasuhiro
    MIMS共同研究集会「可積分系が拓く現象数理モデル」, Nov. 2015, Japanese, 東京, 日本, Domestic conference
    Oral presentation

  • Special solutions of integrable equations and reduction technique
    OHTA Yasuhiro
    International Workshop on Integrable Systems -- Mathematical Analysis and Scientific Computing, Oct. 2015, English, Taipei, Taiwan, International conference
    [Invited]
    Invited oral presentation

  • Coupled soliton equations derived from BKP hierarchy by reduction
    OHTA Yasuhiro
    International Workshop on Integrable Systems -- Mathematical Analysis and Scientific Computing, Oct. 2015, English, Taipei, Taiwan, International conference
    [Invited]
    Invited oral presentation

  • 渦糸方程式の離散化
    Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, OHTA Yasuhiro
    日本応用数理学会2015年度年会, Sep. 2015, Japanese, 金沢, 日本, Domestic conference
    Oral presentation

  • dNLS Flow on Discrete Space Curves
    Sampei Hirose, Jun-ichi Inoguchi, Kenji Kajiwara, Nozomu Matsuura, OHTA Yasuhiro
    MEIS2015 : Mathematical Progress in Expressive Image Synthesis, Sep. 2015, English, Fukuoka, Japan, International conference
    Oral presentation

  • 「広田の直接法」前夜とその後 --計算ノートから見えてくるもの--
    OHTA Yasuhiro, TSUJIMOTO Satoshi
    RIMS研究集会「可積分系理論の諸分野への応用」, Aug. 2015, Japanese, 京都, 日本, Domestic conference
    [Invited]
    Invited oral presentation

  • Algebraic Solutions of Soliton Equations and Their Applications
    OHTA Yasuhiro
    The 8th International Congress on Industrial and Applied Mathematics, Aug. 2015, English, Beijing, China,, International conference
    [Invited]
    Invited oral presentation

  • 自己適合移動格子スキームとミンコフスキー平面上の離散曲線の運動について
    MARUNO Kenichi, KAJIWARA Kenji, INOGUCHI Jyunichi, OHTA Yasuhiro, Feng Baofeng
    日本応用数理学会2014年度年会, Sep. 2014, Japanese, 東京, 日本, Domestic conference
    Oral presentation

  • Rogue Waves for Some Soliton Equations
    OHTA Yasuhiro
    SIAM Conference on Nonlinear Waves and Coherent Structures, Aug. 2014, English, Cambridge, UK, International conference
    [Invited]
    Invited oral presentation

  • Rogue wave solution of Ablowitz-Ladik equation
    OHTA Yasuhiro
    Symmetries and Integrability in Difference Equations (SIDE 2014), Jun. 2014, English, Bangalore, India, International conference
    [Invited]
    Invited oral presentation

  • 離散mKdV方程式と離散sine-Gordon方程式による空間離散曲線の変形
    OHTA yasuhiro, 井ノ口 順一, 梶原 健司, 松浦 望
    日本数学会2014年度年会, Mar. 2014, Japanese, 日本数学会, 東京, Domestic conference
    Oral presentation

  • 可積分系の厳密解とGram行列式
    OHTA yasuhiro
    離散可積分系・離散微分幾何チュートリアル2014, Feb. 2014, Japanese, 九州大学, 福岡, Domestic conference
    [Invited]
    Invited oral presentation

  • 空間離散曲線の等周変形と離散K曲面
    OHTA yasuhiro, 井ノ口 順一, 梶原 健司, 松浦 望
    平成25年度九州大学応用力学研究所共同利用研究集会 「非線形波動研究の拡がり」, Oct. 2013, Japanese, 九州大学, 福岡, Domestic conference
    Oral presentation

  • Discrete mKdV flow on discrete space curves
    OHTA yasuhiro, 井ノ口 順一, 梶原 健司, 松浦 望
    日本応用数理学会2013年度年会, Sep. 2013, Japanese, 日本応用数理学会, 福岡, Domestic conference
    Oral presentation

  • Integrable discretizations and self-adaptive moving mesh methods for a class of nonlinear wave equations
    OHTA Yasuhiro, B.~F.~Feng, K.~Maruno
    The Eighth IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Mar. 2013, English, Athens, Georgia, USA, International conference
    Oral presentation

  • Gauge transformations of discrete integrable systems
    OHTA Yassuhiro, K.~Maruno, B, F.~Feng, K.~Kajiwara
    The Eighth IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Mar. 2013, English, Athens, Georgia, USA, International conference
    Oral presentation

  • BKP with 2-reduction
    OHTA Yassuhiro
    China-Japan Joint Workshop on Integrable Systems 2013, Mar. 2013, English, Kyoto, Japan, International conference
    [Invited]
    Invited oral presentation

  • 空間曲線の等周変形と τ 函数によ る明示公式
    INOGUCHI ZYUNICHI, KAZIWARA KENJI, MATUURA NOZOMU, OHTA YASUHIRO
    日本応用数理学会 2012年度年会, Aug. 2012, Japanese, 稚内 ,日本, Domestic conference
    Oral presentation

  • 離散空間曲線の等周変形とsemi-discrete modified KdV方程式
    OHTA Yasuhiro, 井ノ口 順一
    日本数学会2012年度年会, Mar. 2012, Japanese, 日本数学会, 東京理科大学, Domestic conference
    Oral presentation

  • 可積分系の厳密解とGram行列式
    OHTA Yasuhiro
    離散可積分系・離散微分幾何チュートリアル2012, Feb. 2012, Japanese, 九大数理学, 九大数理学, Domestic conference
    [Invited]
    Invited oral presentation

  • Discretization of soliton equations derived through hodograph transformation
    OHTA Yasuhiro
    2012 Tokyo Workshop on Structure-Preserving Methods, Jan. 2012, English, Tokyo, Tokyo, Japan, International conference
    [Invited]
    Invited oral presentation

  • 離散平面曲線の時間発展に現れる離散可積分系と離散ホドグラフ変換
    OHTA Yasuhiro, B. -F. Feng
    日本応用数理学会2011年度年会, Sep. 2011, Japanese, 京都, 日本, Domestic conference
    Oral presentation

  • 差分ソリトン方程式の話題
    OHTA Yasuhiro
    RIMS研究集会「可積分系数理の進化」, Aug. 2011, Japanese, 京都, 日本, Domestic conference
    [Invited]
    Invited oral presentation

  • 平面離散曲線の edge tangential flow と semi-discrete mKdV 方程式
    OHTA Yasuhiro, 井ノ口 順一, 梶原 健司, 松浦 望
    日本数学会, Mar. 2011, Japanese, 日本数学会, 早稲田大学, Domestic conference
    Oral presentation

  • Dark and bright soliton solutions for coupled derivative nonlinear Schrödinger equation
    OHTA Yasuhiro
    2011 Joint Mathematics Meetings, Jan. 2011, English, New Orleans, USA, New Orleans, USA, International conference
    [Invited]
    Invited oral presentation

  • Coordinate transformation and discretization for soliton equation
    OHTA Yasuhiro
    GCOE conference: Algebraic and geometric aspects of discrete integrable systems --- Integrable systems and cluster algebras, Dec. 2010, English, Tokyo, Japan, International conference
    [Invited]
    Invited oral presentation

  • Discretization of integrable systems with hodograph transformation
    OHTA Yasuhiro
    Satellite conference of the ICM 2010: Integrable Systems and Geometry, Aug. 2010, English, Pondicherry University, Puducherry, India, Pondicherry University, Puducherry, India, International conference
    [Invited]
    Invited oral presentation

  • Discrete sine-Gordon equations: hyperbolic and elliptic types
    OHTA Yasuhiro
    Symmetry Plus Integrability 2010, Jun. 2010, English, South Padre Island, South Padre Island, USA, International conference
    [Invited]
    Invited oral presentation

  • Determinant identities arising from soliton theory
    OHTA Yasuhiro
    China-Japan Joint Workshop on Integrable Systems, Jan. 2010, English, Shaoxing, China, Shaoxing, China, International conference
    [Invited]
    Invited oral presentation

  • SDYM方程式のダルブー変換とその周辺
    OHTA Yasuhiro
    自己双対Yang-Mills方程式の数理と可積分構造, Nov. 2009, Japanese, 名古屋大学, 名古屋大学, Domestic conference
    [Invited]
    Invited oral presentation

  • Dark soliton solution of Sasa-Satsuma equation
    OHTA Yasuhiro
    International Workshop on Nonlinear and Modern Mathematical Physics, Jul. 2009, English, Beijing, China, Beijing, China, International conference
    [Invited]
    Invited oral presentation

  • Non-autonomous discrete KdV方程式の双線形化とCasorati行列式解
    OHTA Yasuhiro, 梶原 健司
    日本数学会無限可積分系セッション, Sep. 2008, Japanese, 日本数学会, 東京工業大学, Domestic conference
    Oral presentation

  • Discretization of coupled nonlinear Schrödinger equations
    OHTA Yasuhiro
    International Conference: Nonlinear Waves--Theory and Applications, Jun. 2008, English, Beijing, China, Beijing, China, International conference
    [Invited]
    Invited oral presentation

  • Bäcklund transformation of Toda lattice and solution of Painlevé equation
    OHTA Yasuhiro
    8th International Conference on Symmetries and Integrability of Difference Equations, Jun. 2008, English, Ste-Adèle, Canada, Ste-Adèle, Canada, International conference
    [Invited]
    Invited oral presentation

  • An integrable difference scheme for the Camassa-Holm equation and numerical computation
    OHTA Yasuhiro, B. Feng, K. Maruno
    International Conference: Nonlinear Waves--Theory and Applications, Jun. 2008, English, Beijing, China, Beijing, China, International conference
    [Invited]
    Invited oral presentation

  • Vector soliton and multi-component KP hierarchy
    OHTA Yasuhiro, K. MARUNO, M. OIKAWA
    AMS Special Session on Algebraic and Geometric Aspects of Integrable Systems, Joint Mathematics Meetings, Jan. 2008, English, San Diego, San Diego, USA, International conference
    Oral presentation

  • 離散戸田格子方程式と直交多項式系
    OHTA Yasuhiro
    研究集会「ソリトンの数理とその応用：非線形波動から可積分系へ」, Dec. 2007, Japanese, 山口, 山口, Domestic conference
    [Invited]
    Invited oral presentation

  • 2+1次元2成分長波短波共鳴相互作用方程式の厳密解
    OHTA Yasuhiro, 丸野 健一, 及川 正行
    日本物理学会領域11, Sep. 2007, Japanese, 北海道大学, 北海道大学, Domestic conference
    Oral presentation

  • A remark on the Hankel determinant formula for the solutions of the Toda equation
    OHTA Yasuhiro, M. MAZZOCCO, K. KAJIWARA
    Integrable Systems: Linear And Nonlinear Dynamics 3, Jul. 2007, English, Islay, Islay, UK, International conference
    Oral presentation

  • Discretization of Sasa Satsuma equation and 3 wave interaction equation
    OHTA Yasuhiro
    研究集会「離散・超離散可積分系の数理とその応用」, Oct. 2005, Japanese, 佐渡, Domestic conference
    Invited oral presentation

  • 離散非線形シュレーディンガー方程式のダークソリトン解の行列式表示と性質
    MARUNO Kenichi, OHTA Yasuhiro
    日本物理学会2005年秋季大会, Sep. 2005, Japanese, 日本物理学会, 同志社大学, International conference
    Oral presentation

  • “くらしっく”なソリトン研究からの話題
    OHTA Yasuhiro
    RIMS 研究集会「ソリトン理論から可積分数理へ: “de nouvelles perspectives”」, Aug. 2005, Japanese, 京都大学数理解析研究所, Domestic conference
    Oral presentation

■ Affiliated Academic Society
  • 日本数学会

■ Research Themes
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