Application of the G′/GG′/G-expansion method to Kawahara type equations using symbolic computation

In this paper, Kawahara type equations are selected to illustrate the effectiveness and simplicity of the G′/GG′/G-expansion method. With the aid of a symbolic computation system, three types of more general traveling wave solutions (including hyperbolic functions, trigonometric functions and rational functions) with free parameters are constructed. Solutions concerning solitary and periodic waves are also given by setting the two arbitrary parameters, involved in the traveling waves, as special values.