Existence of almost greedy bases in mixed-norm sequence and matrix spaces, including Besov spaces
| Autor: | Albiac, Fernando, Ansorena, José L., Bello, Glenier, Wojtaszczyk, Przemysław |
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| Rok vydání: | 2022 |
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| Druh dokumentu: | Working Paper |
| Popis: | We prove that the sequence spaces $\ell_p\oplus\ell_q$ and the spaces of infinite matrices $\ell_p(\ell_q)$, $\ell_q(\ell_p)$ and $(\bigoplus_{n=1}^\infty \ell_p^n)_{\ell_q}$, which are isomorphic to certain Besov spaces, have an almost greedy basis whenever $0 |
| Databáze: | arXiv |
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