{ "id": "math/0404025", "version": "v1", "published": "2004-04-02T11:01:37.000Z", "updated": "2004-04-02T11:01:37.000Z", "title": "Existence of non-elliptic mod l Galois representations for every l >5", "authors": [ "Luis Dieulefait" ], "categories": [ "math.NT" ], "abstract": "For $\\ell = 3$ and 5 it is known that every odd, irreducible, 2-dimensional representation of $\\Gal(\\bar{\\Q}/\\Q)$ with values in $\\F_\\ell$ and determinant equal to the cyclotomic character must \"come from\" the $\\ell$-torsion points of an elliptic curve defined over $\\Q$. We prove, by giving concrete counter-examples, that this result is false for every prime $\\ell >5$.", "revisions": [ { "version": "v1", "updated": "2004-04-02T11:01:37.000Z" } ], "analyses": { "keywords": [ "galois representations", "non-elliptic mod", "cyclotomic character", "torsion points", "giving concrete counter-examples" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math......4025D" } } }