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A branch of geometry dealing with convex sets and functions. Polytopes, convex bodies, discrete geometry, linear programming, antimatroids, ...

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Duality between extremal points and extremal maps

If $C$ is a closed, convex, pointed, solid cone, then there are some results. For example, see B. S. Tam, A geometric treatment of generalized inverses and semigroups of nonnegative matrices, Linear …
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