摘要
研究Bernstein-Durreyer算子Mn(f,x),给出正逆定理和导数的特征刻划定理。
The Bernstein-Durnstein operators Mn (f,x)are Studied. The direct and conversetheorems and the characteristic theorem of derivatives are given.
出处
《青岛化工学院学报(自然科学版)》
1996年第4期398-402,共5页
Journal of Qingdao Institute of Chemical Technology(Natural Science Edition)
关键词
连续模
正逆定理
特征定理
B-D算子
函数逼近
Bernstein-Durrmeyer operators
modulus of continuity
direct and converse theorem
charateristic theorem