Abstract:

 Introducing new trial function, the trial function method is extended to find several types of exact solutions to generalized Burgers-Fisher equation, Zhiber-Shabat equation and Hirota equation. The results indicate that this approach is simple and efficient for solving special nonlinear equations.

Key words:  trial function method; generalized Burgers-Fisher equation; Zhiber-Shabat equation; Hirota equation; exact solution