摘要
研究了Ｂｅｒｎｓｔｅｉｎ－Ｄｕｒｒｍｅｙｅｒ算子的任意阶导数对闭区间￣［０，１］上有界变差函数的逼近，给出了点态收敛阶，并证明了本文所得到的结果是不能改进的。
Having studied the approximation of the free order derivatives of Bernstein-Dur-rmeyer operator’s to the functions with bounded variation in the open interval 0 to 1, the degree of pointwise convergence is given and the deduction proves thatthis results cannot be improved further。
出处
《长春邮电学院学报》
1995年第2期62-66,共5页
Journal of Changchun Post and Telecommunication Institute
关键词
导数
逼近
有界变差函数
B-D算子
收敛
derivativ
approximation
functions of bounded variation
Bernstein-Durrmeyer operator
