Kantorovich算子在Ba空间中的逼近  

On approximation by Kantorovich operator in Ba spaces

作　　者：冯国[1] 

机构地区：[1]台州学院数学系,临海317000

出　　处：《纯粹数学与应用数学》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)

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.

关 键 词：KANTOROVICH算子 BA空间 Ditzian—Totik光滑模 逼近 

分 类 号：O174.41[理学—数学]