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Cohomology Rings of Toric Bundles and the Ring of Conditions. [PDF]

open access: yesArnold Math J
Hofscheier J, Khovanskii A, Monin L.
europepmc   +1 more source

Combinatorial intersection cohomology for fans

open access: yesCombinatorial intersection cohomology for fans
We investigate minimal extension sheaves on arbitrary (possibly non-rational) fans as an approach toward a combinatorial "virtual" intersection cohomology. These are flabby sheaves of graded modules over a sheaf of polynomial rings, satisfying three relatively simple axioms that characterize the equivariant intersection cohomology sheaves on toric ...
openaire  

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