作者机构:[1]Department of Applied Mathematics, Hefei University of Technology, Hefei 230009, China., [2]School of Information Science and Technology, University of Science and Technology of China, Hefei 230027,China.
相关基金:This research was supported by the National Natural Science Foundation of China under Grant Nos. 61271271 and 61370089; 100 Talents Program of Chinese Academy of Science and the Fundamental Research Funds for the Central Universities under Grant No. 2012HGBZ0622.