Constructing infinite sequence exact solutions of nonlinear evolution equations

To construct the infinite sequence new exact solutions of nonlinear evolution equations and study the first kind of elliptic function, new solutions and the corresponding Bäcklund transformation of the equation are presented. Based on this, the generalized pentavalent KdV equation and the breaking soliton equation are chosen as applicable examples and infinite sequence smooth soliton solutions, infinite sequence peak solitary wave solutions and infinite sequence compact soliton solutions are obtained with the help of symbolic computation system Mathematica. The method is of significance to search for infinite sequence new exact solutions to other nonlinear evolution equations.     

New application to Riccati equation

<正>To seek new infinite sequence of exact solutions to nonlinear evolution equations,this paper gives the formula of nonlinear superposition of the solutions and Backlund transformation of Riccati equation.Based on the tanhfunction expansion method and homogenous balance method,new infinite sequence of exact solutions to Zakharov-Kuznetsov equation,Karamoto-Sivashinsky equation and the set of(2+l)-dimensional asymmetric Nizhnik-Novikov-Veselov equations are obtained with the aid of symbolic computation system Mathematica.The method is of significance to construct infinite sequence exact solutions to other nonlinear evolution equations.     

New exact solitary wave solutions to generalized mKdV equation and generalized Zakharov--Kuzentsov equation

In this paper, based on hyperbolic tanh-function method and homogeneous balance method, and auxiliary equation method, some new exact solitary solutions to the generalized mKdV equation and generalized Zakharov--Kuzentsov equation are constructed by the method of auxiliary equation with function transformation with aid of symbolic computation system Mathematica. The method is of important significance in seeking new exact solutions to the evolution equation with arbitrary nonlinear term.     

三角函数型辅助方程法与非线性发展方程的精确解

以辅助方程法和双曲正切函数法为基础,给出构造非线性发展方程精确解的三角函数型辅助方程法.借助符号计算系统Mathematica构造了Boussinesq方程和Klein-Gordon方程的Jacobi椭圆函数精确解和精确孤波解.     

Hybrid localized wave solutions for a generalized Calogero–Bogoyavlenskii–Konopelchenko–Schiff system in a fluid or plasma

Nonlinear Dynamics - Based on the long wave limit method and complex conjugate condition technique, we investigate hybrid localized wave solutions with different forms for the generalized...     

一类非线性发展方程的复合型双孤子新解

通过下列步骤,构造了一类非线性发展方程的无穷序列复合型双孤子新解: 步骤一, 给出两种函数变换,把一类非线性发展方程化为二阶非线性常微分方程; 步骤二, 再通过函数变换, 二阶非线性常微分方程转化为一阶非线性常微分方程组,并获得了该方程组的首次积分; 步骤三, 利用首次积分与两种椭圆方程的新解与Bäcklund 变换, 构造了一类非线性发展方程的无穷序列复合型双孤子新解.     

构造非线性发展方程Jacobi椭圆函数精确解的一种方法

在双曲正切函数法、齐次平衡法和辅助方程法的基础上,给出一种双曲函数型辅助方程和函数变换相结合的方法,利用符号计算系统Mathematica构造了正规长波方程和mKdV方程的Jacobi椭圆函数精确解及其退化后的精确孤波解.     

Burgers方程、组合KdV-mKdV方程和Fisher方程的孤立波解

把双曲正切函数法中双曲正切函数替换成由指数函数组合而成的复合函数,并构造了Burgers方程和组合KdV-mKdV方程以及Fisher方程新的精确孤立波解.     

KdV方程和KP方程的新的精确孤立波解

用新的辅助方程构造了KdV方程和K-P方程的新的精确孤立波解．     

Karamoto-Sivashinsky方程新的精确孤立波解

以双曲正切函数展开法、齐次平衡法和辅助方程法为基础,引入一个双曲函数型辅助方程,同时给出了应用步骤,并借助符号计算系统Mathematica,构造了Karamoto-Sivashinsky方程新的精确孤立波解,这里给出的方法在寻找非线性发展方程的精确方面具有普遍意义.