Entropy numbers of embeddings of Besov spaces in generalized Lipschitz spaces

被引:13
|
作者
Cobos, F [1 ]
Kühn, T
机构
[1] Univ Complutense Madrid, Fac Matemat, Dept Anal Matemat, E-28040 Madrid, Spain
[2] Univ Leipzig, Fak Math & Informat, Math Inst, D-04109 Leipzig, Germany
关键词
entropy numbers; Besov spaces; Lipschitz spaces; complex interpolation; Gaussian processes;
D O I
10.1006/jath.2001.3594
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We establish two-sided estimates for entropy numbers of embeddings between certain weighted Banach sequence spaces with mixed norms. These estimates are "almost" sharp, in the sense that upper and lower bounds differ only by logarithmic terms and improve previous results by D. E. Edmunds and D. Haroske (1999, Dissertationes Math. 380, 1-43; 2000, J. Approx. Theory 104, 226-271). As an application we obtain also new upper entropy estimates for embeddings of Besov spaces in generalized Lipschitz spaces. (C) 2001 Academic Press.
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页码:73 / 92
页数:20
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