摘要

The (G'/G)-expansion method can be used for constructing exact travelling wave solutions of real nonlinear evolution equations. In this paper, we improve the (G'/G)-expansion method and explore new application of this method to (2+1)-dimensional B-type Kadomtsev-Petviashvili (BKP) equation. New types of exact complex travelling wave solutions of (2+1)-dimensional BKP equation are found. Some exact solutions of (2+1)-dimensional BKP equation obtained before are special cases of our results in this paper.