{ "id": "math/0504581", "version": "v1", "published": "2005-04-28T21:23:06.000Z", "updated": "2005-04-28T21:23:06.000Z", "title": "Quadratic Function Fields with Exponent Two Ideal Class Group", "authors": [ "Victor Bautista-Ancona", "Javier Diaz-Vargas" ], "comment": "To appear in the Journal of Number Theory", "categories": [ "math.NT" ], "abstract": "It has been shown by Madden that there are only finitely many quadratic extensions of k(x), k a finite field, in which the ideal class group has exponent two and the infinity place of k(x) ramifies. We give a characterization of such fields that allow us to find a full list of all such field extensions for future reference. In doing so we correct some errors in earlier published literature.", "revisions": [ { "version": "v1", "updated": "2005-04-28T21:23:06.000Z" } ], "analyses": { "subjects": [ "11R11", "11R29", "11R42" ], "keywords": [ "ideal class group", "quadratic function fields", "finite field", "infinity place", "quadratic extensions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......4581B" } } }