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中国科学院大学学报 ›› 2016, Vol. 33 ›› Issue (4): 454-461.DOI: 10.7523/j.issn.2095-6134.2016.04.004

• 数学与物理学 • 上一篇    下一篇

二元Camassa-Holm方程的李对称分析和精确解

田红霞, 高犇   

  1. 太原理工大学数学学院, 太原 030024
  • 收稿日期:2015-11-16 修回日期:2015-12-24 发布日期:2016-07-15
  • 通讯作者: 高犇

Lie symmetry analysis and exact solutions of two-component Camassa-Holm equation

TIAN Hongxia, GAO Be   

  1. College of Mathematics, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2015-11-16 Revised:2015-12-24 Published:2016-07-15
  • Supported by:

    Supported by National Science Foundation of Shanxi(2014021010-1)

摘要:

利用李群分析法研究二元Camassa-Holm方程,该方程以具有线性剪切流的浅水波为模型。通过对称分析得到方程的相似约化和精确解,再用幂级数法获得方程的解。证明了所得幂级数解的收敛性。从变换群的角度考虑了方程所得解的物理意义。

关键词: 李对称分析, 二元Camassa-Holm方程, 相似约化, 精确解

Abstract:

Using the Lie group analysis method, we study the two-component Camassa-Holm equation, which models shallow water waves moving over a linear shear flow.The similarity reductions and exact solutions for the equation are obtained.Then the power series solution are considered by using the power series method.Furthermore, the convergence of the power series solution to the equation is shown.The physical significance of the solutions is considered from the transformation group's point of view.

Key words: Lie symmetry analysis, two-component Camassa-Holm equation, similarity reduction, exact solution

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