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- W2023687029 abstract "The classical Helly’s Theorem about finite sets of convex sets is given an unusually simple proof based on a ‘Redundancy Lemma’. Because the proof is topological it extends immediately to a Helly’s Theorem for the well-known combinatorial topology representation of oriented matroids which is reviewed. The same proof is then used to strengthen Helly’s Theorem in a useful way relative to the Farkas Lemma, both for linear inequality systems and for topologically represented oriented matroids." @default.
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- W2023687029 date "2001-07-01" @default.
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- W2023687029 title "Redundancy and Helly" @default.
- W2023687029 cites W571802905 @default.
- W2023687029 doi "https://doi.org/10.1006/eujc.2000.0487" @default.
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