{ "id": "1307.7691", "version": "v3", "published": "2013-07-29T19:24:31.000Z", "updated": "2014-03-20T07:28:38.000Z", "title": "On the class numbers of the fields of the p^n-torsion points of certain elliptic curves over Q", "authors": [ "Fumio Sairaiji", "Takuya Yamauchi" ], "comment": "11 pages, the all conditions in main theorem are removed", "categories": [ "math.NT" ], "abstract": "Let E be an elliptic curve over Q with prime conductor p. For each non-negative integer n we put K_n:=Q(E[p^n]). The aim of this paper is to estimate the order of the p-Sylow group of the ideal class group of K_n. We give a lower bounds in terms of the Mordell-Weil rank of $E(\\Q)$. As an application of our result, we give an example such that p^{2n} divides the class number of the field $K_n$ in the case of $p=5077$ for each positive integer n.", "revisions": [ { "version": "v3", "updated": "2014-03-20T07:28:38.000Z" } ], "analyses": { "keywords": [ "elliptic curve", "class number", "ideal class group", "mordell-weil rank", "lower bounds" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1307.7691S" } } }