A Note on 'Doubly Periodic Propagating Wave for (2+1)-Dimensional Breaking Soliton Equation'

In a recent paper [Commun. Theor. Phys. (Beijing, China) 49 (2008) 268], Huang et al. gave a general variable separation solution to the (2+1)-dimensional breaking soliton equation via a special Baecklund transformation and the variable separation approach. In terms of the derived variable separation solution and by introducing Jacobi elliptic functions, they claimed that nonelastic types of interaction between Jacobi elliptic function waves are investigated both analytically and graphically. We show that some inappropriateness or errors exist in their paper, and say nothing of the conclusion that some nonelastic types of interaction between Jacobi elliptic function waves in the (2+1)-dimensional breaking soliton equation have been found.