{ "id": "math/0301083", "version": "v1", "published": "2003-01-09T15:03:57.000Z", "updated": "2003-01-09T15:03:57.000Z", "title": "Koszul duality and equivariant cohomology for tori", "authors": [ "Matthias Franz" ], "comment": "37 pages; to appear in Int. Math. Res. Not", "journal": "Int. Math. Res. Not. 42 (2003), 2255-2303", "doi": "10.1155/S1073792803206103", "categories": [ "math.AT" ], "abstract": "Let T be a torus. We show that Koszul duality can be used to compute the equivariant cohomology of topological T-spaces as well as the cohomology of pull backs of the universal T-bundle. The new features are that no further assumptions about the spaces are made and that the coefficient ring may be arbitrary. This gives in particular a Cartan-type model for the equivariant cohomology of a T-space with arbitrary coefficients. Our method works for intersection homology as well.", "revisions": [ { "version": "v1", "updated": "2003-01-09T15:03:57.000Z" } ], "analyses": { "subjects": [ "16S37", "55N91", "55N10", "55N33", "55U15" ], "keywords": [ "equivariant cohomology", "koszul duality", "universal t-bundle", "pull backs", "cartan-type model" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 37, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003math......1083F" } } }