摘要
给出Sikkema算子在C[0,1]空间的逼近强型正定理和弱型逆定理,从而得到其g近的特征刻划.
In the paper, the approximation strong -- type direct theorem and weak -- type inverse theorem are given for Sikkema operators in the space C[0, 1 ], thus its approximation characterization is obtained.
出处
《内蒙古师范大学学报(自然科学汉文版)》
CAS
1997年第1期6-10,共5页
Journal of Inner Mongolia Normal University(Natural Science Edition)
关键词
SIKKEMA算子
光滑模
K-泛函
逼近
Sikkema operators, modulus of smoothness, K - functional, approxinmtion