1. School of Mathematics and Statistics, Hubei Normal University, Huangshi, China
2. School of Mathematics and Physics, China University of Geosciences, Wuhan, China
3. Australian Artificial Intelligence Institute, University of Technology Sydney, Sydney, NSW, Australia
4. School of Mathematics, Southeast University, Nanjing, China
5. Deanship of Graduate Studies and Research, Ahlia University, Manama, Bahrain