New solitary wave solutions for two nonlinear evolution equations

In this paper, multiple exp-function method is employed to investigate exact multiple wave solutions for (2 + 1)-dimensional potential Kadomtsev-Petviashvili equation and (3 + 1)dimensional Jimbo-Miwa equation. Not only already known multiple wave solutions are recovered, but also several new or more general multiple wave solutions are obtained. (C) 2014 Elsevier Ltd. All rights reserved.