{ "id": "1702.08368", "version": "v1", "published": "2017-02-27T16:44:46.000Z", "updated": "2017-02-27T16:44:46.000Z", "title": "The Local Limit of Random Sorting Networks", "authors": [ "Omer Angel", "Duncan Dauvergne", "Alexander E. Holroyd", "Bálint Virág" ], "comment": "35 pages, 5 figures", "categories": [ "math.PR", "math.CO" ], "abstract": "A sorting network is a shortest path from $12 \\dots n$ to $n \\dots 21$ in the Cayley graph of $S_n$ generated by adjacent transpositions. We establish existence of a local limit of sorting networks in a neighbourhood of $an$ for $a\\in[0,1]$ as $n\\to\\infty$, with time scaled by a factor of $n$. The limit is a swap process $U$ on $\\mathbb{Z}$. We show that $U$ is stationary and mixing with respect to the spatial shift and has time-stationary increments. Moreover, the only dependence on $a$ is through time scaling by a factor of $\\sqrt{a(1-a)}$.", "revisions": [ { "version": "v1", "updated": "2017-02-27T16:44:46.000Z" } ], "analyses": { "subjects": [ "60C05", "05E10", "68P10" ], "keywords": [ "random sorting networks", "local limit", "cayley graph", "adjacent transpositions", "time-stationary increments" ], "note": { "typesetting": "TeX", "pages": 35, "language": "en", "license": "arXiv", "status": "editable" } } }