{ "id": "math/0207034", "version": "v2", "published": "2002-07-03T09:28:42.000Z", "updated": "2003-03-14T14:24:35.000Z", "title": "Equivariant compactifications of reductive groups", "authors": [ "Dmitri A. Timashev" ], "comment": "30 pages, AmSLaTeX. Bibliography: 36 items", "categories": [ "math.AG" ], "abstract": "We study equivariant projective compactifications of reductive groups obtained by closing the image of a group in the space of operators of a projective representation. We describe the structure and the mutual position of their orbits under the action of the doubled group by left/right multiplications, the local structure in a neighborhood of a closed orbit, and obtain some conditions of normality and smoothness of a compactification. Our methods of research use the theory of equivariant embeddings of spherical homogeneous spaces and of reductive algebraic semigroups.", "revisions": [ { "version": "v2", "updated": "2003-03-14T14:24:35.000Z" } ], "analyses": { "subjects": [ "14L30", "14M17", "52B20" ], "keywords": [ "reductive groups", "equivariant compactifications", "study equivariant projective compactifications", "left/right multiplications", "equivariant embeddings" ], "tags": [ "journal article" ], "publication": { "doi": "10.1070/SM2003v194n04ABEH000731", "journal": "Sbornik: Mathematics", "year": 2003, "month": "Apr", "volume": 194, "number": 4, "pages": 589 }, "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003SbMat.194..589T" } } }