Classification and Approximate Solutions to a Class of Perturbed Nonlinear Wave Equations  

作　　者：ZHANG Zhi-Yong CHEN Yu-Fu YONG Xue-Lin 

机构地区：[1]School of Mathematical Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049, China [2]Department of Mathematics and Physics, North China Electric Power University, Beijing 102206, China

出　　处：《Communications in Theoretical Physics》2009年第11期769-772,共4页理论物理通讯（英文版）

摘　　要：A complete approximate symmetry classification of a class of perturbed nonlinear wave equations isperformed using the method originated from Fushchich and Shtelen.Moreover,large classes of approximate invariantsolutions of the equations based on the Lie group method are constructed.

关 键 词：approximate symmetry Lie reduction approximate solution 

分 类 号：O175.29[理学—数学] O175.5[理学—基础数学]