{ "id": "2011.03233", "version": "v1", "published": "2020-11-06T08:40:07.000Z", "updated": "2020-11-06T08:40:07.000Z", "title": "Two families of pro-p groups that are not absolute Galois groups", "authors": [ "Claudio Quadrelli" ], "categories": [ "math.NT", "math.GR" ], "abstract": "Let $p$ be a prime. We produce two new families of pro-$p$ groups which are not realizable as absolute Galois groups of fields. To prove this we use the 1-smoothness property of absolute Galois pro-$p$ groups. Moreover, we show in these families one has one-relator pro-$p$ groups which may not be ruled out as absolute Galois groups employing the quadraticity of Galois cohomology (a consequence of Rost-Voevodsky Theorem), or the vanishing of Massey products in Galois cohomology.", "revisions": [ { "version": "v1", "updated": "2020-11-06T08:40:07.000Z" } ], "analyses": { "subjects": [ "12G05", "20E18", "20J06", "12F10" ], "keywords": [ "pro-p groups", "galois cohomology", "absolute galois groups employing", "rost-voevodsky theorem", "massey products" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }