| Affiliation: | 1. School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu 730000, PR China;2. School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, PR China;3. Center for Mathematical Sciences, China University of Geosciences, Wuhan, 430074, PR China;1. School of Mathematical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China;2. School of Mathematical Sciences, Qufu Normal University, Qufu 273165, Shandong, PR China;3. Department of Mathematics, School of Mathematics, Tianjin University, Tianjin, 300072, PR China;4. School of Science and Technology, University of New England, Armidale, NSW 2351, Australia;1. Centre d’analyse et de mathématique sociales – UMR 8557, Ecoles des hautes études en sciences sociales – CNRS, 190-198, avenue de France, 75244 Paris Cedex 13, France;2. CMLA, ENS Cachan, CNRS, 61 Av. du Pdt., Wilson F-94230 Cachan Cedex, France;3. Department of Mathematics, Utrecht University, P.O. Box 80010, 3508 TA Utrecht, The Netherlands;1. College of Mathematics and Statistics, Northwest Normal University, Lanzhou, Gansu 730070, China;2. Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John''s, NL A1C 5S7, Canada;1. Department of Mathematics and Statistics, Auburn University, Auburn, AL 36849, USA;2. Department of Applied Mathematics, Illinois Institute of Technology, Chicago, IL 60616, USA |
