Affiliation: | 1. Department of Mathematics, Nanjing University, Nanjing, P. R. Chinawangweinju@aliyun.com;3. School of Mathematics and Statistics, Huazhong University of Science and Technology, Wuhan, P. R. China;4. Institute for Pure and Applied Mathematics, University of California, Los Angeles, Los Angeles, California, USA;5. Department of Applied Mathematics, Illinois Institute of Technology, Chicago, Illinois, USA;6. Laboratory for Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, P. R. China |