Lower estimates of the widths of classes of functions defined by a modulus of continuity

被引：1

作者：

Shevaldin, VT

机构：

来源：

RUSSIAN ACADEMY OF SCIENCES IZVESTIYA MATHEMATICS | 1995年 / 45卷 / 02期

关键词：

D O I：

10.1070/IM1995v045n02ABEH001648

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

For kernels K satisfying the condition B-2m introduced by the author, lower bounds are found for the Kolmogorov widths of classes of convolutions K*H-omega, omega convex, in the uniform metric. In a number of cases these bounds are sharp.

引用

页码：399 / 415

页数：17

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