| Institution: | 1. College of Mathematics and Statistics, Chongqing Three Gorges University, Chongqing, 404000, China;2. School of Mathematical Science, South China Normal University, Guangzhou, 510631, China;1. School of Mathematical Science, South China Normal University, Guangzhou 510631, China;2. Department of Applied Mathematics, University of Colorado, Boulder, CO 80303, USA;3. Department of Mathematics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong;4. Department of Mathematical Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA;1. School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China;2. School of Mathematics and Statistics, Hanshan Normal University, Chaozhou 521041, China;3. Department of Mathematics, South China University of Technology, Guangzhou 510641, China;1. School of Science, East China Jiaotong University, Nanchang, 330013, China;2. School of Mathematical Sciences, Chongqing Normal University, Chongqing 401331, China;3. School of Mathematical Sciences, South China Normal University, Guangzhou, 510631, China;4. Department of Mathematics, Huainan Normal University, Huainan, 232038, China;1. Department of Mathematics, Cankaya University, Ankara, Turkey;2. Institute of Space Sciences, Magurele, Romania;3. Firat University, Science Faculty, Department of Mathematics, 23119 Elazig, Turkey;4. Federal University Dutse, Science Faculty, Department of Mathematics, 7156 Jigawa, Nigeria |
