DP1 and completely continuous operators

W. Freedman introduced an alternate to the Dunford-Pettis property, called the DP1 property, in 1997. He showed that for 1≤p<∞, (⊕α∈𝒜Xα)p has the DP1 property if and only if each Xα does. This is not the case for (⊕α∈𝒜Xα)∞. In fact, we show that (⊕α∈𝒜Xα)∞ has the DP1 property if and only if it ha...

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Main Authors: Elizabeth M. Bator, Dawn R. Slavens
Format: Article
Language:English
Published: Hindawi Limited 2003-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/S0161171203302315
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spelling doaj-216ee22562d34931bcbc9906ccbc45f02020-11-25T00:02:03ZengHindawi LimitedInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252003-01-012003372375237810.1155/S0161171203302315DP1 and completely continuous operatorsElizabeth M. Bator0Dawn R. Slavens1Department of Mathematics, University of North Texas, P.O. Box 311400, Denton 76203-1400, TX, USADepartment of Mathematics, Midwestern State University, 3410 Taft Blvd, Wichita Falls 76308, TX, USAW. Freedman introduced an alternate to the Dunford-Pettis property, called the DP1 property, in 1997. He showed that for 1≤p<∞, (⊕α∈𝒜Xα)p has the DP1 property if and only if each Xα does. This is not the case for (⊕α∈𝒜Xα)∞. In fact, we show that (⊕α∈𝒜Xα)∞ has the DP1 property if and only if it has the Dunford-Pettis property. A similar result also holds for vector-valued continuous function spaces.http://dx.doi.org/10.1155/S0161171203302315
collection DOAJ
language English
format Article
sources DOAJ
author Elizabeth M. Bator
Dawn R. Slavens
spellingShingle Elizabeth M. Bator
Dawn R. Slavens
DP1 and completely continuous operators
International Journal of Mathematics and Mathematical Sciences
author_facet Elizabeth M. Bator
Dawn R. Slavens
author_sort Elizabeth M. Bator
title DP1 and completely continuous operators
title_short DP1 and completely continuous operators
title_full DP1 and completely continuous operators
title_fullStr DP1 and completely continuous operators
title_full_unstemmed DP1 and completely continuous operators
title_sort dp1 and completely continuous operators
publisher Hindawi Limited
series International Journal of Mathematics and Mathematical Sciences
issn 0161-1712
1687-0425
publishDate 2003-01-01
description W. Freedman introduced an alternate to the Dunford-Pettis property, called the DP1 property, in 1997. He showed that for 1≤p<∞, (⊕α∈𝒜Xα)p has the DP1 property if and only if each Xα does. This is not the case for (⊕α∈𝒜Xα)∞. In fact, we show that (⊕α∈𝒜Xα)∞ has the DP1 property if and only if it has the Dunford-Pettis property. A similar result also holds for vector-valued continuous function spaces.
url http://dx.doi.org/10.1155/S0161171203302315
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