| Affiliation: | 1. School of Management, Shanghai University, Shanghai 200444, China;2. School of Management, Qufu Normal University, Rizhao 276800, China;3. Department of Mathematics, Shanghai University, Shanghai 200444, China;1. Department of Informatics, Bergen University, PB 7803, 5020 Bergen, Norway;2. School of Engineering and Computing Sciences, Durham University, Science Laboratories, South Road, Durham DH1 3LE, United Kingdom;1. Computer Science Institute of Charles University, Prague, Czech Republic;2. Iowa State University, Ames IA, USA;3. Department of Mathematics, Simon Fraser University, Burnaby, B.C. V5A 1S6, Canada;4. University of Waterloo, Canada;1. Department of Mathematics, West Virginia University, Morgantown, WV 26506, United States;2. School of Mathematics and Statistics, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China;3. School of Mathematical Sciences, Anhui University, Hefei, Anhui 230601, China |
