Best approximations and kolmogorov and trigonometric widths of the classes B p,θ Ω of periodic functions of many variables

被引：0

作者：

Stasyuk S.A. ^{[1
]}

机构：

[1] Institute of Mathematics, Ukrainian Academy of Sciences, Kiev

来源：

Ukrainian Mathematical Journal | 2004年 / 56卷 / 11期

关键词：

Periodic Function; Trigonometric Width;

D O I：

10.1007/s11253-005-0155-1

中图分类号：

学科分类号：

摘要：

We obtain estimates exact in order for the best approximations and Kolmogorov and trigonometric widths of the classes B p,θ Ω of periodic functions of many variables in the space L q for certain values of the parameters p and q. © 2005 Springer Science+Business Media, Inc.

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页码：1849 / 1863

页数：14

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