
doi: 10.4171/zaa/952
This paper deals with a generalization of the classical Choquet theorem. We consider metric spaces which are endowed with an abstract notion of convexity. Convex combinations are obtained by the solutions of variational inequalities. A generalized Krein-Milman theorem is derived from our Choquet theorem. We end with an example based on hyperbolic geometry.
Convex functions and convex programs in convex geometry, Convex sets in topological linear spaces; Choquet theory, Spherical and hyperbolic convexity, Choquet theorem, Inequalities and extremum problems involving convexity in convex geometry, metric structure, convex subsets, Variants of convex sets (star-shaped, (\(m, n\))-convex, etc.), extreme points, Convex sets in topological vector spaces (aspects of convex geometry)
Convex functions and convex programs in convex geometry, Convex sets in topological linear spaces; Choquet theory, Spherical and hyperbolic convexity, Choquet theorem, Inequalities and extremum problems involving convexity in convex geometry, metric structure, convex subsets, Variants of convex sets (star-shaped, (\(m, n\))-convex, etc.), extreme points, Convex sets in topological vector spaces (aspects of convex geometry)
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