| Affiliation: | 1. Department of Applied Mathematics, Zhejiang University of Technology, Hangzhou 310023, PR China;2. Department of Applied Mathematics, Shanghai University of International Business and Economics, Shanghai 201620, PR China;3. Department of Mathematics and Statistics, University of South Florida, Tampa, FL 33620-5700, USA;4. College of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao, Shandong 266590, PR China;5. International Institute for Symmetry Analysis and Mathematical Modelling, Department of Mathematical Sciences, North-West University, Mafikeng Campus, Mmabatho 2735, South Africa |
