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arXiv 0802.1818math-phmath.MP
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方程$u_{tx}=u_{xy} u_y-u_{yy} u_x$的双Hamilton性质

Bi-Hamiltonian nature of the equation $u_{tx}=u_{xy} u_y-u_{yy} u_x$

Valentin Ovsienko

摘要:

本文研究了与循环余切维拉索罗代数相关的双Hamilton欧拉方程的非线性可积偏微分方程。这个无限维李代数(在\cite{OR}中构造)是经典维拉索罗代数到两个空间变量情形的推广。我们得到的可积方程的两个主要例子是相当有名的。我们证明了这两个方程之间的关系类似于Korteweg-de Vries和Camassa-Holm方程之间的关系。

英文摘要:

We study non-linear integrable partial differential equations naturally arising as bi-Hamiltonian Euler equations related to the looped cotangent Virasoro algebra. This infinite-dimensional Lie algebra (constructed in \cite{OR}) is a generalization of the classical Virasoro algebra to the case of two space variables. Two main examples of integrable equations we obtain are quite well known. We show that the relation between these two equations is similar to that between the Korteweg-de Vries and Camassa-Holm equations.

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