Listar por tema "Superreflexivity"
Mostrando ítems 1-2 de 2
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Conditional quasi-greedy bases in non-superreflexive Banach spaces
Albiac Alesanco, Fernando José
; Ansorena, José L.; Wojtaszczyk, Przemyslaw (Springer, 2019)
Artículo / Artikulua 
For a conditional quasi-greedy basis B in a Banach space, the associated conditionality constants km[B] verify the estimate km[B]=O(logm). Answering a question raised by Temlyakov, Yang, and Ye, several authors have studied ... -
Non-superreflexivity of Garling sequence spaces and applications to the existence of special types of conditional bases
Albiac Alesanco, Fernando José ; Ansorena, José L.; Dilworth, S. J.; Kutzarova, Denka (Instytut Matematyczny, 2020)
Artículo / Artikulua
We settle in the negative the problem of the superreflexivity of Garling sequence spaces by showing that they contain a complemented subspace isomorphic to a non-superreflexive mixed-norm sequence space. As a by-product, ...
