| Affiliation: | 1. School of Mathematics and Statistics, Xi''an Jiaotong University, Xi''an, Shaanxi 710049, China;2. School of Mathematics and Statistics, Henan University, Kaifeng, Henan 475004, China;3. School of Science, Chang''an University, Xi''an, Shaanxi 710064, China;1. Department of Mathematics, The Chinese University of Hong Kong (CUHK), Hong Kong Special Administrative Region;2. Department of Mathematics, Texas A&M University, College Station, TX 77843, USA;3. North-Eastern Federal University, Yakutsk, Russia;4. Department of Mathematics, University of California, Irvine, USA;5. Nuclear Safety Institute, Russian Academy of Sciences, Moscow, Russia |
