Boundaries of Coxeter Matroids
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Alexandre V. Borovik; Israel Gelfand; Neil White
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Article
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1996
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Elsevier Science
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English
β 230 KB
The purpose of this paper is to introduce, for a finite Coxeter group W, the mod 2 boundary operator on the space of all Coxeter matroids (also known as WPmatroids) for W and P, where P varies through all the proper standard parabolic subgroups of W (Theorem 3 of the paper). A remarkably simple inte