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math.FA2022
Existence of almost greedy bases in mixed-norm sequence and matrix spaces, including Besov spaces
Fernando Albiac, José L. Ansorena, Glenier Bello +1
We prove that the sequence spaces and the spaces of infinite matrices , and , whic…
math.FA2012★ 1 cited
Greedy Algorithms for Reduced Bases in Banach Spaces
Ronald DeVore, Guergana Petrova, Przemyslaw Wojtaszczyk
Given a Banach space X and one of its compact sets F, we consider the problem of finding a good n dimensional space X_n \subset X which can be used to approximate the elements of F…