Open AccessIntersection cohomology of reductive varieties
Author(s) -
Michel Brion,
Roy Joshua⋆
Publication year - 2004
Publication title -
journal of the european mathematical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.549
H-Index - 64
eISSN - 1435-9863
pISSN - 1435-9855
DOI - 10.4171/jems/17
Subject(s) - mathematics , cohomology , intersection (aeronautics) , intersection homology , pure mathematics , algebra over a field , geography , cartography
We extend the methods developed in our earlier work to algorithmicallycompute the intersection cohomology Betti numbers of reductive varieties. Theseform a class of highly symmetric varieties that includes equivariantcompactifications of reductive groups. Thereby, we extend a well-knownalgorithm for toric varieties.
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