1. College of Information Science and Artificial Intelligence, Xiamen Institute of Technology, Xiamen 361021, Fujian, China
2. Department of Mathematics, King Abdulaziz University, Jeddah 21589, Saudi Arabia
3. Department of Mathematics, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
4. Department of Mathematics and Statistics, University of South Florida, Tampa, FL 33620, USA
5. School of Mathematics, South China University of Technology, Guangzhou 510640, China
6. International Institute for Symmetry Analysis and Mathematical Modelling, Department of Mathematical Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
7. School of Mathematics and Physics, North China Electric Power University, Beijing, 102206, China