{ "id": "0709.3802", "version": "v1", "published": "2007-09-24T16:09:20.000Z", "updated": "2007-09-24T16:09:20.000Z", "title": "Morse theory and conjugacy classes of finite subgroups", "authors": [ "Noel Brady", "Matt Clay", "Pallavi Dani" ], "comment": "10 pages, 4 figures", "categories": [ "math.GR" ], "abstract": "We construct a CAT(0) group containing a finitely presented subgroup with infinitely many conjugacy classes of finite-order elements. Unlike previous examples (which were based on right-angled Artin groups) our ambient CAT(0) group does not contain any rank 3 free abelian subgroups. We also construct examples of groups of type F_n inside mapping class groups, Aut(F), and Out(F) which have infinitely many conjugacy classes of finite-order elements.", "revisions": [ { "version": "v1", "updated": "2007-09-24T16:09:20.000Z" } ], "analyses": { "subjects": [ "20F67", "20E45" ], "keywords": [ "conjugacy classes", "finite subgroups", "morse theory", "finite-order elements", "inside mapping class groups" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0709.3802B" } } }