耦合MRT方程的三哈密顿对偶系统
PDF下载 (195)胡碧圆,曹陈辰.耦合MRT方程的三哈密顿对偶系统[J].宁波大学学报(理工版),2024,37(1):31-37.DOI:10.20098/j.cnki.1001-5132.2023.0701
HU Biyuan,CAO Chenchen.Tri-Hamiltonian duality system of coupling Merola-Ragnisco-Tu equation[J].Journal of Ningbo University(Natural Science & Engineering Edition),2024,37(1):31-37.DOI:10.20098/j.cnki.1001-5132.2023.0701
| Title: | Tri-Hamiltonian duality system of coupling Merola-Ragnisco-Tu equation |
| 作者: | 胡碧圆, 曹陈辰 |
| Author(s): | HU Biyuan, CAO Chenchen |
| 关键词: | 线性谱问题; 双哈密顿结构; Darboux-B?cklund变换; 精确解 |
| Keywords: | linear spectral problem; bi-Hamiltonian structure; Darboux-B?klund transformation; exact solution |
| 分类号: | O175.2 |
| DOI: | 10.20098/j.cnki.1001-5132.2023.0701 |
| 文献标识码: | A |
| 摘要: | 本文将三哈密顿方法应用于耦合Merola-Ragnisco-Tu方程, 获得了新的离散可积系统, 并求出了它的线性谱问题、双哈密顿结构以及Darboux-B?cklund变换. 进一步, 利用Darboux- B?cklund变换求出了对偶系统的精确解. |
| Abstract: | Applying the tri-Hamiltonian method to the coupled Merola-Ragnisco-Tu equation, a new discrete integral system is obtained, and its linear spectral problem, bi-Hamiltonian structure, and Darboux-B?klund transformation are solved. Furthermore, using the Darboux-B?klund transformation, the exact solution of the dual system can be sought. |
| 参考文献 /References: | [1] TELA G Y, ZHANG D J. On a Special coupled lattice system of the discrete Boussinesq type[J]. Reports on Mathematical Physics, 2023, 91(2):219-235. [2] TELA G Y, ZHANG D J. Integrability and solutions for a fourth-order lattice Gel’fand-Dikii equation[J]. Applied Mathematics Letters, 2023, 135:108424. [3] QIN M L, WEN X Y. Integrable aspects, analytic solutions and their asymptotic analysis for a discrete relativistic Toda lattice system[J]. Advances in Continuous and Discrete Models, 2023, 2023(1):27. [4] TAKASAKI K. Initial value problem for the Toda lattice hierarchy[J]. Advanced Studies in Pure Mathematics, 1984, 4:139-163. [5] HIROTA R. Nonlinear partial difference equations. IV. B?cklund transformation for the discrete-time Toda equation[J]. Journal of the Physical Society of Japan, 1978, 45(1):321-332. [6] HIROTA R. Nonlinear partial difference equations III; Discrete sine-Gordon equation[J]. Journal of the Physical Society of Japan, 1977, 43(6):2079-2086. [7] MEROLA I, RAGNISCO O, TU G Z. A novel hierarchy of integrable lattices[J]. Inverse Problems, 1994, 10(6):1315-1334. [8] FUCHSSTEINER B. The Lie algebra structure of nonlinear evolution equations admitting infinite dimensional abelian symmetry groups[J]. Progress of Theoretical Physics, 1981, 65(3):861-876. [9] NAKAMURA A, HIROTA R. Second modified KdV equation and its exact multi-soliton solution[J]. Journal of the Physical Society of Japan, 1980, 48(5):1755-1762. [10] OLVER P J. Evolution equations possessing infinitely many symmetries[J]. Journal of Mathematical Physics, 1977, 18(6):1212-1215. [11] OLVER P J, ROSENAU P. Tri-Hamiltonian duality between solitons and solitary-wave solutions having compact support[J]. Physical Review E, 1996, 53(2):1900. [12] TIAN K, LIU Q P. Tri-Hamiltonian duality between the Wadati-Konno-Ichikawa hierarchy and the Song-Qu-Qiao hierarchy[J]. Journal of Mathematical Physics, 2013, 54(4):043513. [13] KANG J, LIU X, OLVER P J, et al. B?cklund transformations for tri-Hamiltonian dual structures of multi-component integrable systems[J]. Journal of Integrable Systems, 2017, 2(1):xyw016. [14] ZHANG M X, FENG B F, LIU J W. Tri-Hamiltonian duality system of Merola-Ragnisco-Tu equation[J]. Physics Letters A, 2021, 385:126966. [15] XU X X. An integrable coupling family of Merola- Ragnisco-Tu lattice systems, its Hamiltonian structure and related nonisospectral integrable lattice family[J]. Physics Letters A, 2010, 374(3):401-410. [16] XU X X. Solving an integrable coupling system of Merola-Ragnisco-Tu lattice equation by Darboux transformation of Lax pair[J]. Communications in Nonlinear Science and Numerical Simulation, 2015, 23(1/2/3):192-201. |
| 备注/Memo: | 收稿日期: 2023-07-04. 宁波大学学报(理工版)网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金(12101339). 第一作者: 胡碧圆, 硕士研究生, 主要研究方向: 可积系统. E-mail: 2273826965@qq.com *通信作者: 曹陈辰, 博士, 主要研究方向: 群论. E-mail: caochenchen@nbu.edu.cn 宁波大学学报(理工版)网址:http://journallg.nbu.edu.cn/ |