Operators of Hardy type

被引：3
|
作者：
Edmunds, D. E. [1 ]
Lang, J. [1 ]
机构：
[1] Univ Cardiff Wales, Sch Math, Cardiff CF24 4YH, Wales
来源：
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS | 2007年 / 208卷 / 01期
关键词：
approximation numbers; Bernstein and Kolmogorov widths; weighted Hardy-type operators; pq-laplacian;
D O I：
10.1016/j.cam.2006.10.034
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We provide a survey of the contributors of Des Evans dealing with operators T of the form T F(x) = v(x)integral(x)(a) u(t)f(t) dt acting between Lehesgue spaces, and also report on new results concerning the Bernstein widths and Kolmogorov numbers of T. (c) 2006 Elsevier B.V. All rights reserved.
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页码：20 / 28
页数：9
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