{ "id": "0709.1341", "version": "v1", "published": "2007-09-10T10:11:46.000Z", "updated": "2007-09-10T10:11:46.000Z", "title": "Coincidence rotations of the root lattice $A_4$", "authors": [ "Michael Baake", "Uwe Grimm", "Manuela Heuer", "Peter Zeiner" ], "comment": "13 pages, 1 figure", "journal": "European Journal of Combinatorics 29 (2008) 1808-1819", "doi": "10.1016/j.ejc.2008.01.012", "categories": [ "math.MG", "math.CO" ], "abstract": "The coincidence site lattices of the root lattice $A_4$ are considered, and the statistics of the corresponding coincidence rotations according to their indices is expressed in terms of a Dirichlet series generating function. This is possible via an embedding of $A_4$ into the icosian ring with its rich arithmetic structure, which recently (arXiv:math.MG/0702448) led to the classification of the similar sublattices of $A_4$.", "revisions": [ { "version": "v1", "updated": "2007-09-10T10:11:46.000Z" } ], "analyses": { "subjects": [ "52C07", "11R52", "05A15" ], "keywords": [ "root lattice", "coincidence site lattices", "dirichlet series generating function", "rich arithmetic structure", "similar sublattices" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0709.1341B" } } }