基金Supported by the NNSF of China(60604004)the Special Projects in Mathematics Funded by NSF of Hebei Province(07M005)the Science and Technology Support Project of Qinhuangdao(201001A037)
基金Supported by the Key Natural Science Foundation of the Education Department of Anhui Province (KJ2019A1303)the Key Natural Science Foundation of the Education Department of Bozhou University(BYZ2018B03)Anhui Provincial Natural Science Foundation (1608085MA12)。