{ "id": "1608.01521", "version": "v1", "published": "2016-08-04T12:56:23.000Z", "updated": "2016-08-04T12:56:23.000Z", "title": "The sandpile model on K_{m,n} and the rank of its configurations", "authors": [ "Michele D'Adderio", "Yvan Le Borgne" ], "comment": "43 pages, 24 figures", "categories": [ "math.CO" ], "abstract": "We present an algorithm to compute the rank of a configuration of the sandpile model for the complete bipartite graph K_{m,n} of complexity O(m+n). Furthermore, we provide a formula for the generating function of parking sorted configurations on complete bipartite graphs K_{m,n} according to rank, degree, and the sizes m and n. The results in the present paper are similar to those found by Robert Cori and the second named author for the complete graph K_{n+1}, and they rely on the analysis of certain operators on the stable sorted configurations of K_{m,n} developed in a previous work by the authors together with Jean-Christophe Aval and Mark Dukes.", "revisions": [ { "version": "v1", "updated": "2016-08-04T12:56:23.000Z" } ], "analyses": { "keywords": [ "sandpile model", "complete bipartite graph", "sorted configurations", "robert cori", "second named author" ], "note": { "typesetting": "TeX", "pages": 43, "language": "en", "license": "arXiv", "status": "editable" } } }