作者机构:[1]Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China, [2]Department of Mathematical Sciences, Indiana University-Purdue University Indianapolis, Indianapolis,IN 46202, USA
相关基金:Project supported by the National Natural Science Foundation of China (Grant No. 10832010), the Innovation Project of the Chinese Academy of Sciences (Grant No, KJCX2-YW- L05) and the 111 Project (Grant No. B07033).