A Banach space dichotomy for quotients of subspaces

dc.creatorFerenczi, Valentin
dc.date2006-03-08
dc.date.accessioned2026-07-07T07:06:39Z
dc.date.available2026-07-07T07:06:39Z
dc.descriptionA Banach space $X$ with a Schauder basis is defined to have the restricted quotient hereditarily indecomposable (QHI) property if $X/Y$ is hereditarily indecomposable (HI) for any infinite codimensional subspace $Y$ with a successive finite-dimensional decomposition on the basis of $X$. A reflexive space with the restricted QHI property is in particular HI, has HI dual, and is saturated with subspaces which are HI and have HI dual. The following dichotomy theorem is proved: any infinite dimensional Banach space contains a quotient of subspace which either has an unconditional basis, or has the restricted QHI property.
dc.description25 pages
dc.identifierhttps://arxiv.org/abs/math/0603188
dc.identifierhttp://arxiv.org/abs/math/0603188
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110104
dc.subjectFunctional Analysis
dc.subject46B03, 46B10
dc.titleA Banach space dichotomy for quotients of subspaces
dc.typetext

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