{ "id": "1905.10120", "version": "v1", "published": "2019-05-24T10:04:28.000Z", "updated": "2019-05-24T10:04:28.000Z", "title": "Convergence towards the end space for random walks on Schreier graphs", "authors": [ "Bogdan Stankov" ], "comment": "8 pages, 2 figures", "categories": [ "math.GR", "math.PR" ], "abstract": "We consider a transitive action of a finitely generated group $G$ and the Schreier graph $\\Gamma$ it defines. For a probability measure $\\mu$ on $G$ with a finite first moment we show that if the induced random walk is transient, it converges towards the space of ends of $\\Gamma$. As a corollary we obtain that for a probability measure on Thompson's group $F$ with a finite first moment, the support of which generates $F$ as a semigroup, the induced random walk on the dyadic numbers has a non-trivial Poisson boundary. Some assumption on the moment of the measure is necessary as follows from an example by Juschenko and Zheng.", "revisions": [ { "version": "v1", "updated": "2019-05-24T10:04:28.000Z" } ], "analyses": { "subjects": [ "05C81", "60B15", "60J50", "05C25", "20F65", "60J10" ], "keywords": [ "schreier graph", "end space", "finite first moment", "induced random walk", "convergence" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }