评注“(G’/G)展开法和(2+1)维非对称Nizhnik-Novikov-Veselov系统的新精确解”

Comment on G'/G Expansion Method and the New Exact Solutions to(2+1)-Dimensional Asymmetrical Nizhnik-Novikov-Veselov System

文献[1]通过引入并扩展(G'/G)展开法给出了(2+1)维非对称Nizhnik-Novikov-Veselov系统十组精确通解,该文献认为这些解是系统新的精确解,本文说明这一结论是不正确的.

By introducing and extending the（G＇/G） expansion method,ten exact general solutions to（2＋1）-dimensional asymmetrical Nizhnik-Novikov-Veselov system are given in a recent article [2009 Acta Physica Sinica 58（07） 4373].These solutions are regarded as the new exact general solutions to this system.The above conclusion is proved incorrect in this paper.