Inequalities in Connection with Post-Widder Operators
Department of Applied Mathematics, Tianjin University, Tianjin 300072, China; Liuhui Center for Applied Mathematics, Nankai University and Tianjin University, Tianjin 300072, China
About author:SONG Zhan-jie(1965-),male,native of Dingzhou,Hebei,an associate professor of Tianjin University,doctorate student,engages in approximation theory.
Supported by:
Supported by the Natural Science Foundation of Hebei Province(101090) Supported by the Natural Science Foundation of China(19901007)；
