This is an announcement for the paper "Continuous version of the Choquet integral reperesentation theorem" by Piotr Pucha{\l}a.
Abstract: The Choquet - Bishop - de Leeuw theorem states that each element of a compact convex subset of a locally convex topological Hausdorff space is a barycenter of a probability measure supported by the set of extreme points of that set. By the Edgar - Mankiewicz result this remains true for nonempty closed bounded and convex set provided it has Radon - Nikodym property. In the paper it is shown, that Choquet - type theorem holds also for "moving" sets: they are values of a certain multifunction. Namely, the existence of a suitable weak* continuous family of probability measures "almost representing" points of such sets is proven. Both compact and noncompact cases are considered. The continuous versions of the Krein - Milman theorem are obtained as corollaries.
Archive classification: Functional Analysis
Mathematics Subject Classification: 54C60; 54C65; 46A55; 46B22
Remarks: 8 pages
The source file(s), choquetpreprint.tex: 29699 bytes, is(are) stored in gzipped form as 0405217.gz with size 10kb. The corresponding postcript file has gzipped size 48kb.
Submitted from: ppuchala@imi.pcz.pl
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