{ "id": "1602.04863", "version": "v1", "published": "2016-02-15T23:14:47.000Z", "updated": "2016-02-15T23:14:47.000Z", "title": "Dismantlable classifying space for the family of parabolic subgroups of a relatively hyperbolic group", "authors": [ "Eduardo Martinez-Pedroza", "Piotr Przytycki" ], "categories": [ "math.GR", "math.GT" ], "abstract": "Let $G$ be a group hyperbolic relative to a finite collection of subgroups $\\mathcal P$. Let $\\mathcal F$ be the family of subgroups consisting of all the conjugates of subgroups in $\\mathcal P$, all their subgroups, and all finite subgroups. Then there is a cocompact model for $E_{\\mathcal F} G$. This result was known in the torsion-free case. In the presence of torsion, a new approach was necessary. Our method is to exploit the notion of dismantlability. A number of sample applications are discussed.", "revisions": [ { "version": "v1", "updated": "2016-02-15T23:14:47.000Z" } ], "analyses": { "subjects": [ "20F67", "57M07", "55R35", "57S30" ], "keywords": [ "relatively hyperbolic group", "dismantlable classifying space", "parabolic subgroups", "group hyperbolic", "finite collection" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160204863M" } } }