{ "id": "2207.06353", "version": "v1", "published": "2022-07-13T17:04:52.000Z", "updated": "2022-07-13T17:04:52.000Z", "title": "Massey products in the étale cohomology of number fields", "authors": [ "Eric Ahlqvist", "Magnus Carlson" ], "comment": "39 pages", "categories": [ "math.NT", "math.AG" ], "abstract": "We give formulas for 3-fold Massey products in the \\'etale cohomology of the ring of integers of a number field and use these to find the first known examples of imaginary quadratic fields with class group of $p$-rank two possessing an infinite $p$-class field tower, where $p$ is an odd prime. We also disprove McLeman's $(3,3)$-conjecture.", "revisions": [ { "version": "v1", "updated": "2022-07-13T17:04:52.000Z" } ], "analyses": { "subjects": [ "11R34", "14F20", "14G25" ], "keywords": [ "number field", "massey products", "class field tower", "imaginary quadratic fields", "disprove mclemans" ], "note": { "typesetting": "TeX", "pages": 39, "language": "en", "license": "arXiv", "status": "editable" } } }