Approximation of Functions from the Isotropic Nikol'skii-Besov Classes in the Uniform and Integral Metrics

被引：2

作者：

Yanchenko, S. Ya. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Math, Kiev, Ukraine

来源：

UKRAINIAN MATHEMATICAL JOURNAL | 2016年 / 67卷 / 10期

关键词：

PERIODIC-FUNCTIONS; VARIABLES; WIDTHS;

D O I：

10.1007/s11253-016-1175-8

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We obtain the exact-order estimations for the approximation of the isotropic Nikol'skii-Besov classes of functions of several variables by the de la Vall,e-Poussin-type sums in metrics of the spaces L (a)(a"e (d) ) and L-1(R-d ).

引用

页码：1599 / 1610

页数：12

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