{ "id": "1811.02145", "version": "v1", "published": "2018-11-06T03:28:33.000Z", "updated": "2018-11-06T03:28:33.000Z", "title": "Rationality problem for norm one tori, II", "authors": [ "Sumito Hasegawa", "Akinari Hoshi", "Aiichi Yamasaki" ], "comment": "23 pages", "categories": [ "math.AG", "math.NT", "math.RA" ], "abstract": "We give a stably and retract rational classification of norm one tori of dimension $n-1$ for $n=2^e$ $(e\\geq 1)$ is a power of $2$ and $n=12, 14, 15$. Retract non-rationality of norm one tori for primitive $G\\leq S_{2p}$ where $p$ is a prime number and for the five Mathieu groups $M_n\\leq S_n$ $(n=11,12,22,23,24)$ is also given.", "revisions": [ { "version": "v1", "updated": "2018-11-06T03:28:33.000Z" } ], "analyses": { "subjects": [ "11E72", "12F20", "13A50", "14E08", "20C10", "20G15" ], "keywords": [ "rationality problem", "retract rational classification", "retract non-rationality", "prime number", "mathieu groups" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }