Entropy and approximation numbers of limiting embeddings; an approach via Hardy inequalities and quadratic forms |
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| Authors: | Hans Triebel |
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| Affiliation: | Mathematisches Institut, Fakultät für Mathematik und Informatik, Friedrich-Schiller-Universität Jena, 07737 Jena, Germany |
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| Abstract: | This paper deals with entropy numbers and approximation numbers for compact embeddings of weighted Sobolev spaces into Lebesgue spaces in limiting situations. This work is based on related Hardy inequalities and the spectral theory of some degenerate elliptic operators. |
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