On the Convergence of a Family of Chlodowsky Type Bernstein-Stancu-Schurer Operators

被引:4
|
作者
Shu, Lian-Ta [1 ]
Zhou, Guorong [2 ]
Cai, Qing-Bo [1 ]
机构
[1] Quanzhou Normal Univ, Sch Math & Comp Sci, Quanzhou 362000, Peoples R China
[2] Xiamen Univ Technol, Sch Appl Math, Xiamen 361024, Peoples R China
基金
中国国家自然科学基金;
关键词
APPROXIMATION; (P; Q)-ANALOG; THEOREMS;
D O I
10.1155/2018/6385451
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We construct a new family of univariate Chlodowsky type Bernstein-Stancu-Schurer operators and bivariate tensor product form. We obtain the estimates of moments and central moments of these operators, obtain weighted approximation theorem, establish local approximation theorems by the usual and the second order modulus of continuity, estimate the rate of convergence, give a convergence theorem for the Lipschitz continuous functions, and also obtain a Voronovskaja-type asymptotic formula. For the bivariate case, we give the rate of convergence by using the weighted modulus of continuity. We also give some graphs and numerical examples to illustrate the convergent properties of these operators to certain functions and show that the new ones have a better approximation to functions.. for one dimension.
引用
收藏
页数:15
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