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arXiv 1901.07307nlin.SI
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(2+1)维广义变系数浅水波方程的非局部对称性和精确解

Nonlocal symmetries and exact solutions of the (2+1)-dimensional generalised variable coefficient shallow water wave equation

Xiangpeng Xin, Linlin Zhang, Yarong Xia, Hanze Liu

摘要:

本文利用标准的截断Painleve分析,得到了(2+1)维广义变系数浅水波(SWW)方程的Schwartz方程。借助于拉克斯对,构造了SWW方程的非局部对称,并通过复杂的计算过程将其局部化。利用封闭系统的Lie点对称性和Schwartz方程,得到了一些相互作用的精确解,如孤子椭圆余弦波解。相应的二维和三维图形被放置在说明广义变系数SWW方程的动态行为。

英文摘要:

In this paper, using the standard truncated Painleve analysis, the Schwartzian equation of (2+1)-dimensional generalised variable coefficient shallow water wave (SWW)equation is obtained. With the help of lax pairs, nonlocal symmetries of the SWW equation are constructed which be localized by a complicated calculation process. Furthermore, using the Lie point symmetries of the closed system and Schwartzian equation, some exact interaction solutions are obtained, such as soliton-cnoidal wave solutions. Corresponding 2D and 3D figures are placed on illustrate dynamic behavior of the generalised variable coefficient SWW equation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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