Kantorovich算子导数与光滑模的等价关系  

An Equivalent Relation between the Derivatives of Kantorovich Operators and the Modulus of Smoothness

作　　者：冯国[1] 

机构地区：[1]台州学院数学系,浙江临海317000

出　　处：《台州学院学报》2003年第3期3-6,共4页Journal of Taizhou University

摘　　要：利用Ditzian-Totik光滑模研究了Kantorovich算子导数的点态和整体特征,得到等价定理.统一了该算子导数的点态和整体特征的结论.According to the Ditzian - Totik modulus , this paper makes a study of the pointwise and global characterization theorems for the derivatives of the Kantorovich operators, and obtains the equivalent theorem. These results bridge the gap between the pointwise and global conclusions.

关 键 词：KANTOROVICH算子 DITZIAN-TOTIK光滑模 导数 等价定理 

分 类 号：O177[理学—数学]