Subdivisional Spaces and Graph Braid Groups
Documenta mathematica, Tome 24 (2019), pp. 1513-1583
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We study the problem of computing the homology of the configuration spaces of a finite cell complex X. We proceed by viewing X, together with its subdivisions, as a subdivisional space – a kind of diagram object in a category of cell complexes. After developing a version of Morse theory for subdivisional spaces, we decompose X and show that the homology of the configuration spaces of X is computed by the derived tensor product of the Morse complexes of the pieces of the decomposition, an analogue of the monoidal excision property of factorization homology.
DOI : 10.4171/dm/709
Classification : 05C10, 20F36, 55R80, 55U05
Mots-clés : cell complexes, graphs, configuration spaces, subdivisional spaces, braid groups
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Gabriel C. Drummond-Cole; Ben Knudsen; Byung Hee An. Subdivisional Spaces and Graph Braid Groups. Documenta mathematica, Tome 24 (2019), pp. 1513-1583. doi: 10.4171/dm/709

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