APPROXIMATION OF (ψ, β)-DIFFERENTIABLE FUNCTIONS BY POISSON INTEGRALS IN THE UNIFORM METRIC

被引:10
|
作者
Zhyhallo, T. V. [1 ]
Kharkevych, Yu. I. [1 ]
机构
[1] Volyn Natl Univ, Lutsk, Ukraine
关键词
Fourier Series; Periodic Function; Differentiable Function; Summable Function; Account Relation;
D O I
10.1007/s11253-010-0311-0
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We obtain asymptotic equalities for upper bounds of approximations of functions from the class C(beta,infinity)(psi) by Poisson integrals in the metric of the space C.
引用
收藏
页码:1757 / 1779
页数:23
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