Affiliation: | 1. Department of Applied Mathematics, University of Valladolid, Paseo del Cauce 59, 47011 Valladolid, Spain;2. IMUVA, Institute of Mathematics of University of Valladolid, Spain;3. Department of Applied Mathematics, University of Valladolid, Paseo de Belen 15, 47011 Valladolid, Spain;1. Department of Applied Mathematics, Nanjing University of Finance and Economics, Nanjing, Jiangsu 210023, PR China;2. School of Automation, Southeast University, Nanjing, 210096, PR China;3. Institute of Information and Control Engineering Technology, Nanjing Normal University, Nanjing, Jiangsu 210042, PR China;4. College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210042, PR China;1. Department of Mathematics, Kunming University of Science and Technology, Kunming, Yunnan 650500, PR China;2. School of Mathematics and Statistics, Yunnan University, Kunming 650091, PR China;1. College of Science, Shandong University of Science and Technology, Qingdao 266590, PR China;2. Shandong Key Laboratory of Robotics and Intelligent Technology, Qingdao 266590, PR China;1. MOE Key Lab for Intelligent Networks and Network Security, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China;2. College of Information Engineering, Tarim University, Alar, Xinjiang 843300, China;3. School of Science, Xi’an Polytechnic University, Xi’an, Shaanxi 710048, China;1. School of Mathematical Sciences and Physics, North China Electric Power University, Beijing 102206, China;2. School of Economics and Management, North China Electric Power University, Beijing 102206, China |