1. Department of Applied Mathematics, School of Science, Dalian Maritime University, Dalian 116026, China
2. Chongqing National Center for Applied Mathematics, Chongqing Normal University, Chongqing 404087, China
3. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China
4. School of Mathematics and Information Science, Shandong Technology and Business University, Yantai 264005, China
5. Yantai Key Laboratory of Big Data Modeling and Intelligent Computing, Yantai 264005, China
6. Department of Basics, PLA Dalian Naval Academy, Dalian 116018, China