About approximation numbers in function spaces

被引：27

作者：

Caetano, AM ^{[1
]}

机构：

[1] Univ Aveiro, Dept Matemat, P-3810 Aveiro, Portugal

来源：

JOURNAL OF APPROXIMATION THEORY | 1998年 / 94卷 / 03期

关键词：

D O I：

10.1006/jath.1998.3202

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Sharp estimates for the approximation numbers of embeddings between the function spaces B-pq(s) and F-pq(s) on domains are given in a case not thoroughly studied by Edmunds and Triebel. Corresponding sharp estimates are also obtained for the counterparts of that case in the weighted function space setting. (C) 1998 Academic Press.

引用

页码：383 / 395

页数：13

共 16 条

[1]

[Anonymous], 1986, Eigenvalue distribution of compact operators

[2] WEYL NUMBERS IN FUNCTION-SPACES [J].