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Countable-Codimensional Subspaces of c0-Barrelled Spaces

✍ Scribed by J. M. Garcia-Lafuente


Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
327 KB
Volume
130
Category
Article
ISSN
0025-584X

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✦ Synopsis


A HAUSDORFF locally convex space is said to be c,-barrelled (respectively cu-barrelled) if each sequence in the dual space t h a t converges weakly to 0 (res!,r:ctively t h a t is weakly ?.~oundecl), is equicontinuous. It is proved that if a c,,-barrelled space E has dual E' weakly sequentially complete, then every subsi'ace of countable codimensjon of E is c,-barrcllecl. %Ire prove that the hypothesis on E' cannot be dropped and we supply a n esniiiple of a complete c,,-hnrrellecl space with dual wealily sequentially coin1)lete that is not co-barrelled.


πŸ“œ SIMILAR VOLUMES


Proximinality in Subspaces of c0
✍ G. Godefroy; V. Indumathi πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 94 KB

We say that a normed linear space X is a R(1) space if the following holds: If Y is a closed subspace of finite codimension in X and every hyperplane containing Y is proximinal in X then Y is proximinal in X. In this paper we show that any closed subspace of c 0 is a R(1) space. ## 1999 Academic Pr

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Let X be a Banach space and Β΅ be a finite measure space. It is shown that if 1 ≀ p < ∞ resp 1 < p < ∞ , the Bochner space L p Β΅ X contains asymptotically isometric copies of c 0 resp l 1 if and only if X does.