1. National Center for Applied Mathematics in Hunan, Key Laboratory of Intelligent Computing & Information Processing of Ministry of Education, Hunan Key Laboratory for Computation and Simulation in Science and Engineering, Xiangtan University, Xiangtan, 411105, China.
2. School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, China.
3. Corresponding author. School of Mathematics and Statistics, Northeast Normal University, Changchun, 130024, China.