Summary
It is shown that every convex set-valued function defined on a cone with a cone-basis in a real linear space with compact values in a real locally convex space has an affine selection. Similar results can be obtained for midconvex set-valued functions.
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References
Bernstein, F. andDoetsch, G.,Zur Theorie der konvexen Funktionen. Math. Ann.76 (1915), 514–526.
Nikodem, K.,Midpoint convex functions majorized by midpoint concave functions. Aequationes Math.32 (1987), 45–51.
Nikodem, K.,A characterization of midconvex set-valued functions. Acta Univ. Carolin.—Math. Phys.30 (1989), 125–129.
Smajdor, A.,Additive selections of superadditive set-valued functions. Aequationes Math.39 (1990), 121–128.