{ "id": "2001.00865", "version": "v1", "published": "2020-01-03T15:50:48.000Z", "updated": "2020-01-03T15:50:48.000Z", "title": "The rank of the 2-class group of some fields with large degree", "authors": [ "Mohamed Mahmoud Chems-Eddin" ], "categories": [ "math.NT" ], "abstract": "Let $d$ be an odd square-free integer, $k= \\mathbb{Q}(\\sqrt{d}, \\sqrt{-1})$ and $L_{n,d}=\\mathbb{Q}(\\zeta_{2^n},\\sqrt{d})$, with $n\\geq 3$ is an integer. We compute the rank of the $2$-class group of $L_{n,d}$ when all the divisors of $d$ are congruent to $9\\pmod{16}$. Furthermore, we give the rank of the $2$-class group of $ L_{n,d}$ according to the one of $ L_{4,d}$, when the divisors of $d$ are congruent to $7$ or $9\\pmod{16}$.", "revisions": [ { "version": "v1", "updated": "2020-01-03T15:50:48.000Z" } ], "analyses": { "keywords": [ "large degree", "class group", "odd square-free integer" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }