{ "id": "math/0701214", "version": "v2", "published": "2007-01-08T03:08:47.000Z", "updated": "2007-10-16T14:57:24.000Z", "title": "Graphs, free groups and the Hanna Neumann conjecture", "authors": [ "Brent Everitt" ], "comment": "J. Group Theory (to appear)", "journal": "J. Group Theory 11(6) (2008), 885-899", "categories": [ "math.GR" ], "abstract": "A new bound for the rank of the intersection of finitely generated subgroups of a free group is given, formulated in topological terms, and very much in the spirit of Stallings. The bound is a contribution to (although unfortunately not a solution of) the strengthened Hanna Neumann conjecture.", "revisions": [ { "version": "v2", "updated": "2007-10-16T14:57:24.000Z" } ], "analyses": { "keywords": [ "free group", "strengthened hanna neumann conjecture", "finitely generated subgroups", "topological terms", "intersection" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007math......1214E" } } }