Does the set of all doubly-stochastic matrices form a convex polytope? In general, I wonder how the proofs of convexity and geometry can be established for sets of matrices of this kind? Anything to do with the birkhoff's theorem!? Am not sure, if I am thinking in the right direction and hence the post.
2026-03-25 20:57:58.1774472278
Proof that the set of doubly-stochastic matrices forms a convex polytope?
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