Affiliation: | 1. Department of Mathematics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, 278-8510, Japan;2. Department of Creative Engineering, National Institute of Technology, Kushiro College, 2-32-1 Otanoshike-Nishi, Kushiro-Shi, Hokkaido 084-0916, Japan;1. Department of Mathematics, Shanghai Normal University, Shanghai 200234, China;2. School of Mathematics and Big Data, Anhui University of Science and Technology, Huainan 232001, Anhui, China |