基于Painlevé展开,给出了变系数KdV方程的新型Darboux变换,反复应用该变换可以得到变系数KdV方程的许多精确类孤子解.
A newtype of Darboux transformation of the variable coefficients KdV equation was given according to the Painleveexpansion. By using the transformation repeatedly, the soliton-like solutions of the variable coefficients KdV equation can be obtained.