›› 2014, Vol. 23 ›› Issue (10): 100201-100201.doi: 10.1088/1674-1056/23/10/100201
• GENERAL • 下一篇
刘希忠a, 俞军a, 任博a, 杨建荣b
Liu Xi-Zhong (刘希忠)a, Yu Jun (俞军)a, Ren Bo (任博)a, Yang Jian-Rong (杨建荣)b
摘要: The residual symmetry relating to the truncated Painlevé expansion of the Kadomtsev-Petviashvili (KP) equation is nonlocal, which is localized in this paper by introducing multiple new dependent variables. By using the standard Lie group approach, new symmetry reduction solutions for the KP equation are obtained based on the general form of Lie point symmetry for the prolonged system. In this way, the interaction solutions between solitons and background waves are obtained, which are hard to find by other traditional methods.
中图分类号: (Partial differential equations)