“…In order to obtain analytical solutions, several methods have been applied for some particular cases of (1). In this sense, for f (u) = u 2 /2, constant and g = 0, Equation (1) is KS equation, and in [1] exact travelling wave solutions are obtained using trigonometric functions expansions method. In [4,5], the authors have analysed the classical and nonclassical symmetries of Equation (1) with = k, = = 0, g(u) = 0, f (u) constant and u = F(u).…”