{ "id": "1404.1510", "version": "v2", "published": "2014-04-05T19:37:12.000Z", "updated": "2015-09-11T13:33:22.000Z", "title": "Classification of joinings for Kleinian groups", "authors": [ "Amir Mohammadi", "Hee Oh" ], "comment": "57 pages, To appear in Duke Math. J", "categories": [ "math.DS" ], "abstract": "We classify all locally finite joinings of a horospherical subgroup action on \\Gamma \\ G when \\Gamma is a Zariski dense geometrically finite subgroup of G=PSL_2(R) or PSL_2(C). This generalizes Ratner's 1983 joining theorem for the case when \\Gamma is a lattice in G. One of the main ingredients is equidistribution of non-closed horospherical orbits with respect to the Burger-Roblin measure which we prove in a greater generality where G is the connected component of the identity in SO(n,1) for n at least 2 and \\Gamma is any Zariski dense geometrically finite subgroup of G.", "revisions": [ { "version": "v1", "updated": "2014-04-05T19:37:12.000Z", "abstract": "We classify all locally finite joinings of a horospherical subgroup action on \\Gamma \\ G when G=PSL_2(R) or PSL_2(C) and Gamma is a geometrically finite Zariski dense subgroup of G. This generalizes Ratner's 1983 joining theorem for the case when \\Gamma is a lattice in G.", "comment": "53 pages", "journal": null, "doi": null }, { "version": "v2", "updated": "2015-09-11T13:33:22.000Z" } ], "analyses": { "keywords": [ "kleinian groups", "geometrically finite zariski dense subgroup", "classification", "generalizes ratners", "locally finite joinings" ], "note": { "typesetting": "TeX", "pages": 57, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1404.1510M" } } }