A Multiple Extended Trial Equation Method for the Fractional Sharma-Tasso-Olver Equation

In this paper, a multiple extended trial equation method is proposed to seek exact solutions of nonlinear time-fractional equation. The validity and advantages of the proposed method are illustrated by its application to the Sharma-Tasso-Olver equation. As a result, various complexiton solutions consisting of hyperbolic functions, rational functions and their mixture with parameters are obtained. When some parameters are taken as special values, the known double solitary-like wave solutions are derived from the double hyperbolic function solution.