{ "id": "math/0007062", "version": "v3", "published": "2000-07-10T22:34:09.000Z", "updated": "2002-07-13T21:43:08.000Z", "title": "L-presentations and branch groups", "authors": [ "Laurent Bartholdi" ], "journal": "J. Algebra 268 (2003), no. 2, 419--443", "doi": "10.1016/S0021-8693(03)00268-0", "categories": [ "math.GR" ], "abstract": "We introduce L-presentations: group presentations given by a generating set, a set of relations and a set of substitution rules on the generating set producing more relations. We first study in full generality the structure of finitely L-presented groups, i.e. groups for which all the above sets are finite, and then show that a broad class of groups acting on rooted trees admit explicitly constructible finite L-presentations: they are the \"branch\" groups defined by R. Grigorchuk.", "revisions": [ { "version": "v3", "updated": "2002-07-13T21:43:08.000Z" } ], "analyses": { "subjects": [ "20F05", "20E08" ], "keywords": [ "branch groups", "trees admit explicitly constructible finite", "generating set", "admit explicitly constructible finite l-presentations", "full generality" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2000math......7062B" } } }