Jacobi elliptic function solutions to the coupled KdV-mKdV equation
组合KdV-mKdV方程的Jacobi椭圆函数解

Based on the new expansion of the first kind of elliptic function, a method for constructing Jacobi elliptic function solutions to nonlinear wave equations is p roposed. The method is applied to the coupled KdV-mKdV equation and some new Jacobi elliptic function solutions to the equation are obtained. Some specific kind s of solutions and their relevant figures are also presented.