{ "id": "1103.1176", "version": "v2", "published": "2011-03-06T23:31:40.000Z", "updated": "2011-11-28T16:33:32.000Z", "title": "On the weighted enumeration of alternating sign matrices and descending plane partitions", "authors": [ "Roger E. Behrend", "Philippe Di Francesco", "Paul Zinn-Justin" ], "comment": "v2: published version", "journal": "J. Combin. Theory Ser. A 119 (2012) 331-363", "doi": "10.1016/j.jcta.2011.09.004", "categories": [ "math.CO", "math-ph", "math.MP" ], "abstract": "We prove a conjecture of Mills, Robbins and Rumsey [Alternating sign matrices and descending plane partitions, J. Combin. Theory Ser. A 34 (1983), 340-359] that, for any n, k, m and p, the number of nxn alternating sign matrices (ASMs) for which the 1 of the first row is in column k+1 and there are exactly m -1's and m+p inversions is equal to the number of descending plane partitions (DPPs) for which each part is at most n and there are exactly k parts equal to n, m special parts and p nonspecial parts. The proof involves expressing the associated generating functions for ASMs and DPPs with fixed n as determinants of nxn matrices, and using elementary transformations to show that these determinants are equal. The determinants themselves are obtained by standard methods: for ASMs this involves using the Izergin-Korepin formula for the partition function of the six-vertex model with domain-wall boundary conditions, together with a bijection between ASMs and configurations of this model, and for DPPs it involves using the Lindstrom-Gessel-Viennot theorem, together with a bijection between DPPs and certain sets of nonintersecting lattice paths.", "revisions": [ { "version": "v2", "updated": "2011-11-28T16:33:32.000Z" } ], "analyses": { "subjects": [ "05A05", "05A15", "05A19", "15B35", "82B20", "82B23" ], "keywords": [ "descending plane partitions", "weighted enumeration", "determinants", "nxn alternating sign matrices", "domain-wall boundary conditions" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1103.1176B" } } }