Subspaces without the approximation property
Subspaces without the approximation property
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DOI:
10.1007/bf02760833
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发表时间:
1978-03
影响因子:
1
通讯作者:
A. Szankowski
中科院分区:
文献类型:
--
作者:
A. Szankowski
It is proved that the Banach spacelpwith 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 ofXis strictly less than 2 or if the infimum of cotypes ofXis strictly more than 2 thenXcontains a subspace without AP.