摘要
本文证明修正的Szasz算子逼近的强型正定理和逆定理,从而得到该算子逼近特征的刻画.所获结果类似于Szasz算子相应的结果.
In this paper, we show the direct and converse theorems of strong type of approximation for modified Szasz operators. Rom these theorems, the characterization of approximation for these operators is derived. The obtained results are similar to the corresponding ones of the Szasz operators.
基金
Supported by the Foundation of Key Item of Science and Technology of Education Ministry of China(03142)
Foundation of Higher School of Ningxia(JY2002107)
关键词
修正的Szász算子
强逆不等式
逼近
Modified Szasz operators
strong converse inequality
approximation.
