On the convexity of the weakly compact Chebyshev sets in Banach spaces

被引:0
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作者
Vassilis Kanellopoulos
机构
[1] University of Athens Panepistimiopolis,Department of Mathematics
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Hilbert Space; Banach Space; Normed Linear Space; Smooth Banach Space; Smooth Point;
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摘要
A sufficient condition for a Banach spaceX is given so that every weakly compact Chebyshev subset ofX is convex. For this purpose a class broader than that of smooth Banach spaces is defined. In this way a former result of A. Brøndsted and A. L. Brown is partially extended in every finite dimensional normed linear space and a known result in Hilbert spaces is proved in a different way.
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页码:61 / 69
页数:8
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