根据简化的Hirota双线性方法和Cole-Hopf变换，当一个新的双模耦合KdV方程中的非线性参数与耗散参数取特殊值时，得到了该新的双模耦合KdV方程的多孤子解.同时，当方程中的非线性参数与耗散参数取一般值时，通过不同的函数展开法，如tanh/coth法和Jacobi椭圆函数法，可得到这个方程的其他精确解.
In this paper, multiple-soliton solutions for a new two-mode coupled KdV (nTMcKdV) equation are obtained by using the simplified Hirota's method and the Cole-Hopf transformation. It is shown that these types of multiple solutions exist only for models in which specific values for the nonlinearity and dispersion parameters are included in the models. Furthermore, other exact solutions for an nTMcKdV equation using general values of these parameters are derived by using several different expansion methods such as the tanh/coth method and the Jacobi elliptic function method.
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