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Intersection Cohomology of reductive varieties

Michel Brion·Roy Joshua
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Abstract

We extend the methods developed in our earlier work to algorithmically compute the intersection cohomology Betti numbers of reductive varieties. These form a class of highly symmetric varieties that includes equivariant compactifications of reductive groups. Thereby, we extend a well-known algorithm for toric varieties.

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Michel Brion, Roy Joshua. 2003-10-08. Intersection Cohomology of reductive varieties. https://arxiv.org/abs/math/0310107

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