{ "id": "0811.1946", "version": "v2", "published": "2008-11-12T18:02:36.000Z", "updated": "2009-01-22T18:50:33.000Z", "title": "On right-angled Artin groups without surface subgroups", "authors": [ "Sang-hyun Kim" ], "comment": "29 pages, 14 figures. Proof of Lemma 3.6 is simplified; several typos are corrected", "journal": "Groups Geom. Dyn. 4 (2010), no. 2, 275-307", "categories": [ "math.GR", "math.GT" ], "abstract": "We study the class N of graphs, the right-angled Artin groups defined on which do not contain surface subgroups. We prove that a presumably smaller class N' is closed under amalgamating along complete subgraphs, and also under adding bisimplicial edges. It follows that chordal graphs and chordal bipartite graphs belong to N'.", "revisions": [ { "version": "v2", "updated": "2009-01-22T18:50:33.000Z" } ], "analyses": { "subjects": [ "20F36", "20F65", "05C25" ], "keywords": [ "right-angled artin groups", "chordal bipartite graphs belong", "contain surface subgroups", "adding bisimplicial edges", "chordal graphs" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 29, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0811.1946K" } } }