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Compact embeddings of Brezis-Wainger type

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Cobos, Fernando and Kühn, Thomas and Schonbek, Tomas (2006) Compact embeddings of Brezis-Wainger type. Revista Matemática Iberoamericana, 22 (1). pp. 305-322. ISSN 0213-2230

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Official URL: http://projecteuclid.org/euclid.rmi/1148492184


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Abstract

Let Ω be a bounded domain in Rn and denote by idΩ the restriction operator from the Besov space B1+n/p pq (Rn) into the generalized Lipschitz space Lip(1,−α)(Ω). We study the sequence of entropy numbers of this operator and prove that, up to logarithmic factors, it behaves asymptotically like ek(idΩ) ∼ k−1/p if α > max (1 + 2/p −1/q, 1/p). Our estimates improve previous results by Edmunds and Haroske.


Item Type:Article
Uncontrolled Keywords:Entropy Numbers; Banach-Spaces; Operators; Compact embeddings; Besov spaces; Lipschitz spaces; Mathematics
Subjects:Sciences > Mathematics > Mathematical analysis
ID Code:15042
Deposited On:27 Apr 2012 09:14
Last Modified:20 Jun 2018 11:35

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