通过直接假设法给出两个非线性方程的一些简单对称及其这些对称所构成的李代数结构,并利用对称约化方法给出对应的精确约化的常微分方程.
Symmetries and Lie algebraic structures for two nonlinear equations are obtained by use of the direct assumption method.The corresponding reduction ordinary differential equations are also given by means of the symmetry reduction method.