Finite dimensional Hamiltonian system related to a Lax pair with symplectic and cyclic symmetries

Finite dimensional Hamiltonian system related to a Lax pair with symplectic and cyclic symmetries
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与具有辛和循环对称性的 Lax 对相关的有限维哈密顿系统

DOI:
10.1088/0951-7715/25/2/371
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发表时间:
2011-07
期刊:
影响因子:
1.7
通讯作者:
Zhou, Zi-Xiang
Zhou, Zi-Xiang
中科院分区:
数学2区
文献类型:
--
作者:
Zhou, Zi-Xiang

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对于具有辛对称性和循环对称性的1+1维Lax对,通过给出统一的Lax矩阵证明存在与其相关的自然有限维哈密顿系统。统一证明了所导出的有限维哈密顿系统的刘维尔可积性。这些哈密顿系统的任何解都会给出原始偏微分方程的解。作为应用,考虑了二维双曲Toda方程,并从一般结果得到了与之相关的有限维可积哈密顿系统。
For the 1 + 1 dimensional Lax pair with a symplectic symmetry and cyclic symmetries, it is shown that there is a natural finite-dimensional Hamiltonian system related to it by presenting a unified Lax matrix. The Liouville integrability of the derived finite-dimensional Hamiltonian systems is proved in a unified way. Any solution of these Hamiltonian systems gives a solution of the original PDE. As an application, the two-dimensional hyperbolic Toda equation is considered and the finite-dimensional integrable Hamiltonian system related to it is obtained from the general results.
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