非线性发展方程新的周期解

In this paper,some new periodic solutions of nonlinear evolution equations and corresponding travelling wave solutions are obtained by using the double function method and Jacobi elliptic functions.     

PSEUDOPOTENTIAL METHOD APPLIED TO KdV EQUATION AND HIGHER DEGREE KdV EQUATION

In this paper,pseudopotential method is applied to KdV equation and higher degree KdV equation. For KdV equation we find the relative connection between pseudopotential and various travelling wave solutions of KdV equation, i. e. the discontinuous solution, the unbounded periodic solution and the soliton-like solution of KdV equation are determined by zero of pseudopotential function. The pseudopotential and solitary wave solution of the higher degree KdV equation and n-dimension higher degree KdV equation are presented.     

Manakov型非线性Schrdinger方程的Jacobi椭圆函数包络解

简化了扩展的Jacobi椭圆函数展开法 ,亦即对修正的Jacobi椭圆函数展开法进行了扩展 .把这种方法应用于Manakov型非线性Schr dinger方程 ,得到了Jacobi椭圆函数包络解 .在一定条件下 ,这些解退化成相应的包络冲击波解和包络孤立波解 .