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arxiv: 0805.1860 · v3 · submitted 2008-05-13 · 🧮 math.FA · math.LO

Unconditional basic sequences in spaces of large density

classification 🧮 math.FA math.LO
keywords basicdensityunconditionalbanachsequencesspacesalephconsistency
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We study the problem of the existence of unconditional basic sequences in Banach spaces of high density. We show, in particular, the relative consistency with GCH of the statement that every Banach space of density $\aleph_\omega$ contains an unconditional basic sequence.

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