Affiliation: | (1) Institute of Mathematics, Changsha University of Science and Technology, Changsha, China;(2) Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong;(3) Institute of Applied Mathematics, Hunan University, Changsha, China;(4) Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong |