Abstract
Using the idea of transformation, some links between (2+1)-dimensional nonlinear evolution equations and the ordinary differential equations Painlevé-II equations has been illustrated. The Kadomtsev–Petviashvili (KP) equation, generalized (2+1)-dimensional break soliton equation and (2+1)-dimensional Boussinesq equation are researched. As a result, some new interesting results about these (2+1)-dimensional PDEs have been obtained, such as the exact solutions with arbitrary functions, rich rational solutions and the nontrivial Bäcklund transformations have been derived.
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