| Affiliation: | 1. Department of Mathematics, Soochow University, Suzhou 215006, PR China;2. Department of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215009, PR China;1. School of Mathematics and Information Science, Yantai University, Yantai 264005, Shandong, PR China;2. School of Mathematics and Information Science, Shandong Institute of Business and Technology, Yantai 264005, Shandong, PR China;1. KU Leuven, Center for Economic Studies, Naamsestraat 69, 3000 Leuven, Belgium;2. Department of Transport Science, KTH Royal Institute of Technology, Teknikringen 10, Stockholm, Sweden;1. Institute of Mathematics, Statistics and Scientific Computing, University of Campinas–UNICAMP, 13083-859, Campinas, SP, Brazil;2. Department of Physics, Chemistry and Mathematics, UFSCar, 18052-780, Sorocaba, SP, Brazil |
