DIRECT AND CONVERSE RESULTS FOR q-BERNSTEIN OPERATORS

被引:3
作者
Finta, Zoltan [1 ]
机构
[1] Univ Babes Bolyai, Dept Math, RO-400084 Cluj Napoca, Romania
关键词
q-Bernstein polynomials; K-functional; Ditzian-Totik modulus of smoothness; Berens-Lorentz-type theorem; POLYNOMIALS;
D O I
10.1017/S0013091507001228
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Direct and converse theorems are established for the q-Bernstein polynomials introduced by G. M. Phillips. The direct approximation theorems are given for the second-order Ditzian-Totik modulus of smoothness. The converse results are theorems of Berens-Lorentz type.
引用
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页码:339 / 349
页数:11
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