Comments on 'New exact kink solutions, solitons and periodic form solutions for a combined KdV and Schwarzian KdV equation'

摘要

In this paper, we demonstrate that 14 solutions from 34 of the combined KdV and Schwarzian KdV equation obtained by Li [Z.T. Li, Appl. Math. Comput. 215 (2009) 2886-2890] are wrong and do not satisfy the equation. The other a number of exact solutions are equivalent each other.