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On the properties (wL) and (wV)

  • Ioana Ghenciu EMAIL logo
Veröffentlicht/Copyright: 30. Dezember 2016
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Abstract

We characterize Banach spaces X with spaces with property (wL), i.e. spaces with the property that every L-subset of X* is weakly precompact. We prove that a Banach space X has property (wL) if and only if for any Banach space Y, any completely continuous operator T : XY has weakly precompact adjoint if and only if any completely continuous operator T : X has weakly precompact adjoint.

We prove that if E is a Banach space and F is a reflexive subspace of E* such that F has property (wL), then E has property (wL). We show that a space E has property RDP* (resp. the DPrcP) if and only if any closed separable subspace of E has property RDP* (resp. the DPrcP). We also show that G has property (wL) if under some conditions Kw*(E*, F) contains the dual of G.


(Communicated by L’ubica Holá)


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Received: 2014-6-1
Accepted: 2015-1-5
Published Online: 2016-12-30
Published in Print: 2016-12-1

© 2016 Mathematical Institute Slovak Academy of Sciences

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