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- W4302172360 abstract "We construct and analyze an explicit basis for the homology of the boolean complex of a Coxeter system. This gives combinatorial meaning to the spheres in the wedge sum describing the homotopy type of the complex. We assign a set of derangements to any finite simple graph. For each derangement, we construct a corresponding element in the homology of the complex, and the collection of these elements forms a basis for the homology of the boolean complex. In this manner, the spheres in the wedge sum describing the homotopy type of the complex can be represented by a set of derangements. We give an explicit, closed-form description of the derangements that can be obtained from any graph, and compute this set for several families of graphs. In the cases of complete graphs and Ferrers graphs, these calculations give bijective proofs of previously obtained enumerative results." @default.
- W4302172360 created "2022-10-06" @default.
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- W4302172360 date "2010-05-24" @default.
- W4302172360 modified "2023-09-28" @default.
- W4302172360 title "Homology of the Boolean Complex" @default.
- W4302172360 doi "https://doi.org/10.48550/arxiv.1005.4411" @default.
- W4302172360 hasPublicationYear "2010" @default.
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