{ "id": "1009.0667", "version": "v2", "published": "2010-09-03T13:44:40.000Z", "updated": "2011-10-28T15:51:39.000Z", "title": "Expander graphs from Curtis Tits groups", "authors": [ "Rieuwert Blok", "Corneliu Hoffman", "Alina Vdovina" ], "comment": "Some results are strengthened", "doi": "10.1016/j.jcta.2011.10.007", "categories": [ "math.GR", "math.CO", "math.GT" ], "abstract": "Using the construction of a nonorientable Curtis-Tits group of type $\\tilde A_n$, we obtain new explicit families of expander graphs of valency five for unitary groups over finite fields.", "revisions": [ { "version": "v2", "updated": "2011-10-28T15:51:39.000Z" } ], "analyses": { "keywords": [ "curtis tits groups", "expander graphs", "unitary groups", "nonorientable curtis-tits group", "explicit families" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1009.0667B" } } }