arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1208.3259nlin.SI
收藏

Kadomtsev-Petviashvili方程描述的不同类型非线性波之间的相互作用

Interactions among different types of nonlinear waves described by the Kadomtsev-Petviashvili Equation

Xue-Ping Cheng, Chun-Li Chen, Sen-Yue Lou

摘要:

在非线性物理中,由于多孤子解可以通过各种有效的方法得到,孤子之间的相互作用得到了很好的研究。然而,研究孤立子(或孤波)、椭圆余弦周期波和Painlevé波等不同类型的非线性波之间的相互作用是非常困难的。本文将Kadomtsev-Petviashvili(KP)方程的达布变换(DT)的非局部对称性局部化,并将原系统嵌入到一个扩大的系统中.然后利用DT求出相应的群不变解,从而得到不同类型的非线性波之间的相互作用解,并指出从KP方程的两种基本约化的Boussinesq波或KdV型波出发,DT的本质和独特作用是增加一个额外的孤子。

英文摘要:

In nonlinear physics, the interactions among solitons are well studied thanks to the multiple soliton solutions can be obtained by various effective methods. However, it is very difficult to study interactions among different types of nonlinear waves such as the solitons (or solitary waves), the cnoidal periodic waves and Painlevé waves. In this paper, the nonlocal symmetries related to the Darboux transformations (DT) of the Kadomtsev-Petviashvili (KP) equation is localized after imbedding the original system to an enlarged one. Then the DT is used to find the corresponding group invariant solutions such that interaction solutions among different types of nonlinear waves can be found. It is shown that starting from a Boussinesq wave or a KdV-type wave, which are two basic reductions of the KP equation, the essential and unique role of the DT is to add an additional soliton.

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。

↑