1. School of Big Data and Statistics, Anhui University, Hefei, People's Republic of China
2. Department of Mathematics, Tsing Hua University, Hsinchu, Taiwan, People's Republic of China
3. Sino-Canada Research Centre of Nonlinear Dynamics and Noise Control, Xiamen University of Technology and the University of Regina, Xiamen University of Technology, Xiamen, Fujian, People's Republic of China
4. Department of Mathematics and Statistics, University of Regina, Regina, SK, Canada