通过利用修正的CK直接约化方法,建立了对称正则长波(SRLW)方程组的对称群理论。利用对称群理论建立了SRLW方程组的新旧解之间的关系,利用SRLW方程组的旧解得到了它们新的精确解。基于上述理论和SRLW方程组共轭方程组的解,得到了SRLW方程组的守恒律。
By using the modified direct reduction method presented by Clarkson and Kruskal, the symmetry group theorem of symmetric regularized long wave (SRLW) equations are derived. Some new exact solutions of SRLW equations are obtained by applying the theorem and given solutions. Conservation laws of the equations are also obtained with the corresponding Lie symmetry.