李群方法是研究非线性微分方程的有力工具,应用经典或非经典李对称方法可得到大量非线性微分方程(组)的显式解.对于2+1维的破裂孤子方程,利用CK方法得到了方程求解的Bachlund变换公式,从而获得方程的一些新精确解,推广了文献[4～8]中的结果.
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