Abstract
We show that in certain non-locally convex Orlicz function spacesL ϕ with trivial dual every compact convex set is locally convex and hence the Krein-Milman theorem holds. This complements the example constructed by Roberts of a compact convex set without extreme points inL p (0<p<1) and answers a question raised by Shapiro.
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N. J. Kalton,Linear operators whose domain is locally convex, Proc. Edinburgh Math. Soc.20 (1976), 292–299.
N. J. Kalton and N. T. Peck,A re-examination of the Roberts example of a compact convex set without extreme points, in preparation.
J. W. Roberts,Pathological compact convex sets in the spaces L p, 0≦p<1, inThe Altgeld Book, University of Illinois, 1976.
J. W. Roberts,A compact convex set with no extreme points, Studia Math.60 (1977), 255–266.
J. W. Roberts,The embedding of compact convex sets in locally convex spaces, Canad. J. Math.30 (1978), 449–455.
S. Rolewicz,Some remarks on the spaces N(L) and N(l), Studia Math.18 (1959), 1–9.
J. H. Shapiro,Remarks on F-spaces of analytic functions, inBanach Spaces of Analytic Functions, Proc. Kent State Conference 1976. Springer Lectures Notes604 (1977), 107–124.
P. Turpin,Convexités dans les espaces vectoriels topologiques generaux, Diss. Math.131, 1976.
A. Wiweger,Linear spaces with mixed topology, Studia Math.20 (1961), 47–68.
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Kalton, N.J. AnF-space with trivial dual where the Krein-Milman theorem holds. Israel J. Math. 36, 41–49 (1980). https://doi.org/10.1007/BF02761229
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DOI: https://doi.org/10.1007/BF02761229