Subspaces without the approximation property

A. Szankowski*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

It is proved that the Banach space l p with 1≦p<2 contains a subspace without AP (the case 2<p≦∞ follows from the Enflo's construction and also from the present one). The result generalizes to the following one: if the supremum of types of X is strictly less than 2 or if the infimum of cotypes of X is strictly more than 2 then X contains a subspace without AP.

Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalIsrael Journal of Mathematics
Volume30
Issue number1-2
DOIs
StatePublished - Mar 1978

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