给出一种三角函数型辅助方程及其解,并借助符号计算系统Mathematica,把该方程直接应用到sine-Gordon方程、双sine-Gordon方程和MKdV-sine.Gordon方程,得到了Jacobi椭圆函数精确解以及退化后的孤波解和三角函数波解。
The auxiliary equation of the triangle function type and its solutions are given. The equation is directly applied to sine-Gordon equation, double sine-Gordon and MKdV sine-Gordon, with the help of symbolic computation system Mathematica. The Jacobi elliptic function exact solutions, degenerated solitary wave solutions and triangle function wave solutions of the equations are obtained.