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Cobos, Fernando and Domínguez, Óscar and Kühn, Thomas (2018) Duality for logarithmic interpolation spaces when 0 < q < 1 and applications. Journal of Mathematical Analysis and Applications, 466 (1). pp. 373-399. ISSN 1432-0940
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Official URL: https://www.sciencedirect.com/science/article/pii/S0022247X1830489X
Abstract
We work with spaces (A0;A1)θ;q;A which are logarithmic perturbations of the real interpolation spaces. We determine the dual of (A0;A1)θ;q;A when0 < q < 1. As we show, if θ = 0 or 1 then the dual space depends on the relationship between q and A. Furthermore we apply the abstract results to compute the dual space of Besov spaces of logarithmic smoothness and the dual space of spaces of compact operators in a Hilbert space which are closeto the Macaev ideals.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Teoría de la aproximación |
| Palabras clave (otros idiomas): | Approximation spaces, Besov spaces Compact embeddings, Entropy numbers, Approximation numbers |
| Subjects: | Sciences > Mathematics Sciences > Mathematics > Mathematical analysis |
| ID Code: | 48260 |
| Deposited On: | 28 Jun 2018 11:31 |
| Last Modified: | 03 Jul 2018 07:36 |
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