{ "id": "math/9807001", "version": "v3", "published": "1998-07-01T17:52:16.000Z", "updated": "1999-03-01T00:00:00.000Z", "title": "The classification of punctured-torus groups", "authors": [ "Yair N. Minsky" ], "comment": "67 pages, published version", "journal": "Ann. of Math. (2) 149 (1999), no. 2, 559-626", "categories": [ "math.GT", "math.DS" ], "abstract": "Thurston's ending lamination conjecture proposes that a finitely generated Kleinian group is uniquely determined (up to isometry) by the topology of its quotient and a list of invariants that describe the asymptotic geometry of its ends. We present a proof of this conjecture for punctured-torus groups. These are free two-generator Kleinian groups with parabolic commutator, which should be thought of as representations of the fundamental group of a punctured torus. As a consequence we verify the conjectural topological description of the deformation space of punctured-torus groups (including Bers' conjecture that the quasi-Fuchsian groups are dense in this space) and prove a rigidity theorem: two punctured-torus groups are quasi-conformally conjugate if and only if they are topologically conjugate.", "revisions": [ { "version": "v3", "updated": "1999-03-01T00:00:00.000Z" } ], "analyses": { "subjects": [ "30F40", "57M50" ], "keywords": [ "punctured-torus groups", "free two-generator kleinian groups", "classification", "thurstons ending lamination conjecture", "finitely generated kleinian group" ], "tags": [ "journal article" ], "publication": { "publisher": "Princeton University and the Institute for Advanced Study", "journal": "Ann. Math." }, "note": { "typesetting": "TeX", "pages": 67, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998math......7001M" } } }