{ "id": "1810.11346", "version": "v1", "published": "2018-10-26T14:27:07.000Z", "updated": "2018-10-26T14:27:07.000Z", "title": "Lattices of finite abelian groups", "authors": [ "Frieder Ladisch" ], "comment": "13 pages", "categories": [ "math.NT", "math.MG" ], "abstract": "We study certain lattices constructed from finite abelian groups. We show that such a lattice is eutactic, thereby confirming a conjecture by B\\\"ottcher, Eisenbarth, Fukshansky, Garcia, Maharaj. Our methods also yield simpler proofs of two known results: First, such a lattice is strongly eutactic if and only if the abelian group has odd order or is elementary abelian. Second, such a lattice has a basis of minimal vectors, except for the cyclic group of order 4.", "revisions": [ { "version": "v1", "updated": "2018-10-26T14:27:07.000Z" } ], "analyses": { "subjects": [ "11H31", "11H55" ], "keywords": [ "finite abelian groups", "yield simpler proofs", "odd order", "minimal vectors", "cyclic group" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }