{ "id": "0905.0295", "version": "v1", "published": "2009-05-03T22:43:27.000Z", "updated": "2009-05-03T22:43:27.000Z", "title": "On the linearity of the holomorph group of a free group on two generators", "authors": [ "F. R. Cohen", "V. Metaftsis", "S. Prassidis" ], "categories": [ "math.GR", "math.GT" ], "abstract": "Let F_n denote the free group generated by n letters. The purpose of this article is to show that Hol(F_2), the holomorph of the free group on two generators, is linear. Consequently, any split group extension of F_2 by a linear group H is linear. This result gives a large linear subgroup of Aut(F_3). A second application is that the mapping class group for genus one surfaces with two punctures is linear.", "revisions": [ { "version": "v1", "updated": "2009-05-03T22:43:27.000Z" } ], "analyses": { "subjects": [ "20F28" ], "keywords": [ "free group", "holomorph group", "generators", "split group extension", "large linear subgroup" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0905.0295C" } } }