Combinatoriality of lattice sheaf cohomology vanishing
Combinatoriality of lattice sheaf cohomology vanishing
Let be a hyperplane arrangement in a vector space of dimension , let be its intersection lattice with the minimal element removed, and let denote the lattice sheaf associated with the module of logarithmic vector fields. Lattice sheaf cohomology conjecture. The vanishing of the groups
for depends only on the poset . This is the reformulation of Terao's freeness conjecture given by the authors, connecting freeness to the cohomology of a sheaf on the intersection lattice. The parser supplies no resolution evidence, so the claim is recorded as open.
Sources & referencesView supporting material
Primary source
Paul Mücksch, “On Yuzvinsky's lattice sheaf cohomology for hyperplane arrangements”, arXiv:2008.13700 (2021).
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