{ "id": "2012.14824", "version": "v1", "published": "2020-12-29T16:06:50.000Z", "updated": "2020-12-29T16:06:50.000Z", "title": "Heuristics for $2$-class Towers of Cyclic Cubic Fields", "authors": [ "Nigel Boston", "Michael R. Bush" ], "comment": "16 pages", "categories": [ "math.NT" ], "abstract": "We consider the Galois group $G_2(K)$ of the maximal unramified $2$-extension of $K$ where $K/\\mathbb{Q}$ is cyclic of degree $3$. We also consider the group $G^+_2(K)$ where ramification is allowed at infinity. In the spirit of the Cohen-Lenstra heuristics, we identify certain types of pro-$2$ group as the natural spaces where $G_2(K)$ and $G^+_2(K)$ live when the $2$-class group of $K$ is $2$-generated. While we do not have a theoretical scheme for assigning probabilities, we present data and make some observations and conjectures about the distribution of such groups.", "revisions": [ { "version": "v1", "updated": "2020-12-29T16:06:50.000Z" } ], "analyses": { "subjects": [ "11R29", "11R16" ], "keywords": [ "cyclic cubic fields", "class towers", "galois group", "cohen-lenstra heuristics", "natural spaces" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }