1. School of Mathematics and Statistics, Anhui Normal University, Wuhu, Anhui, China
2. School of Mathematics and Statistics and the Key Laboratory of Control and Optimization of Complex Systems, College of Hunan Province, Hunan Normal University, Changsha, China
3. College of Information Science and Engineering, Hunan Women’s University, Changsha, Hunan, China
4. School of Computer, Data and Mathematical Sciences, Western Sydney University, Sydney, NSW, Australia