Spaces of Compact Operators on a Hilbert Space with the Fixed Point Property
β Scribed by Patrick N. Dowling; Narcisse Randrianantoanina
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 111 KB
- Volume
- 168
- Category
- Article
- ISSN
- 0022-1236
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β¦ Synopsis
Every non-reflexive subspace of K(H), the space of compact operators on a Hilbert space H, contains an asymptotically isometric copy of c 0 . This, along with a result of Besbes, shows that a subspace of K(H) has the fixed point property if and only if it is reflexive.
π SIMILAR VOLUMES
In this paper, we show that the weak nearly uniform smooth Banach spaces have the fixed point property for nonexpansive mappings.
Let Z be a fixed separable operator space, X/Y general separable operator spaces, and T : X Γ Z a completely bounded map. Z is said to have the Complete Separable Extension Property (CSEP) if every such map admits a completely bounded extension to Y and the Mixed Separable Extension Property (MSEP)
Determining fixed points of nonexpansive mappings is a frequent problem in mathematics and physical sciences. An algorithm for finding common fixed points of nonexpansive mappings in Hilbert space, essentially due to Halpern, is analyzed. The main theorem extends Wittmann's recent work and partially