Strong converse result for uniform approximation by Meyer-Konig and Zeller operator

被引:2
|
作者
Gadjev, Ivan [1 ]
机构
[1] Univ Transport, Dept Math & Informat, Sofia 1574, Bulgaria
关键词
Meyer-Konig and Zeller operator; K-functional; Direct theorem; Strong converse theorem; INEQUALITIES;
D O I
10.1016/j.jmaa.2015.03.004
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We characterize the approximation of functions in uniform norm by classical Meyer-Konig and Zeller operator. Using the closed connection between the approximation by Meyer-Konig and Zeller operator and the weighted approximation by Baskakov operator, we prove a strong converse inequality of type A in terms of the K-functional. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码:32 / 42
页数:11
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