摘要
利用D itzian-T otik光滑模,研究了K antorov ich算子在Ba空间中的逼近.得到逼近的正定理与等价定理.所得结果改进,推广和统一了一些作者的结果.
In this paper,we use Ditzian-Totik modulus to study the approximation problem by Kantorovich operator in Ba Spaces,and obtain the direct theorem and the equivalent theorem of the approximation by Kantorovich operator in Ba spaces. The results presented in this paper improve ,extend and unify many author＇s recent results.
出处
《纯粹数学与应用数学》
CSCD
北大核心
2005年第4期356-360,共5页
Pure and Applied Mathematics
基金
浙江省教育厅科研项目(20040292)
