{ "id": "math/0606660", "version": "v1", "published": "2006-06-26T20:59:03.000Z", "updated": "2006-06-26T20:59:03.000Z", "title": "Groups of type L_2(q) acting on polytopes", "authors": [ "Dimitri Leemans", "Egon Schulte" ], "comment": "14 pages (Advances in Geometry, to appear)", "categories": [ "math.CO", "math.MG" ], "abstract": "We prove that if G is a string C-group of rank 4 and G is isomorphic to L_2(q) with q a prime power, then q must be 11 or 19. The polytopes arising are Grunbaum's 11-cell of type {3,5,3} for L_2(11) and Coxeter's 57-cell of type {5,3,5} for L_2(19), each a locally projective regular 4-polytope.", "revisions": [ { "version": "v1", "updated": "2006-06-26T20:59:03.000Z" } ], "analyses": { "subjects": [ "51M20", "51E24" ], "keywords": [ "prime power", "isomorphic", "string c-group", "locally projective regular" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......6660L" } } }