By the same authors

Deletion-restriction for sheaf homology of geometric lattices

Research output: Working paper



Publication details

DateSubmitted - 2019
DateE-pub ahead of print (current) - 2019
Number of pages17
Original languageEnglish

Publication series



We give a long exact sequence for the homology of a geometric lattice equipped with a sheaf of modules, in terms of the deleted and restricted lattices. This is then used to compute the homology of the arrangement lattice of a hyperplane arrangement equipped with the natural sheaf. This generalises an old result of Lusztig.

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