{ "id": "1409.3509", "version": "v1", "published": "2014-09-11T17:32:42.000Z", "updated": "2014-09-11T17:32:42.000Z", "title": "Some 3-manifold groups with the same finite quotients", "authors": [ "John Hempel" ], "comment": "10 pages", "categories": [ "math.GT" ], "abstract": "We give examples of closed, oriented 3-manifolds whose fundamental groups are not isomorphic, but yet have the same sets of finite quotient groups; hence the same profinite completions. We also give examples of compact, oriented 3-manifolds with non-empty boundaries whose fundamental groups though isomorphic have distinct peripheral structures, but yet have the same sets of finite peripheral pair quotients (defined below). The examples are Seifert Fibered Spaces with zero rational Euler number; moreover most of these manifolds give rise to such examples.", "revisions": [ { "version": "v1", "updated": "2014-09-11T17:32:42.000Z" } ], "analyses": { "subjects": [ "57M05", "20E18" ], "keywords": [ "fundamental groups", "finite peripheral pair quotients", "zero rational euler number", "finite quotient groups", "distinct peripheral structures" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1409.3509H" } } }