{ "id": "1302.2309", "version": "v2", "published": "2013-02-10T09:21:48.000Z", "updated": "2013-11-08T03:50:21.000Z", "title": "Infinite transitivity on universal torsors", "authors": [ "Ivan Arzhantsev", "Alexander Perepechko", "Hendrik Süß" ], "comment": "17 pages", "categories": [ "math.AG" ], "abstract": "Let X be an algebraic variety covered by open charts isomorphic to the affine space and q: X' \\to X be the universal torsor over X. We prove that the automorphism group of the quasiaffine variety X' acts on X' infinitely transitively. Also we find wide classes of varieties X admitting such a covering.", "revisions": [ { "version": "v2", "updated": "2013-11-08T03:50:21.000Z" } ], "analyses": { "subjects": [ "14M25", "14R20", "14J50", "14L30" ], "keywords": [ "universal torsor", "infinite transitivity", "open charts isomorphic", "affine space", "wide classes" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.2309A" } } }