The Golod–Shafarevich inequality and the class field tower problem Authors Jordi Vilà Casadevall École Polytechnique Fédérale de Lausanne (EPFL) DOI: 10.2436/20.2002.02.33 Keywords: number theory, class field tower problem, pro-p groups, Golod–Shafarevich inequality Abstract In this article we present a proof of the class field tower problem. We begin by introducing pro-p groups, explain how to describe them in terms of generators and relations, and present the Golod–Shafarevich inequality, which establishes a criterion for a pro-p group to be infinite. After introducing some notions from algebraic number theory, we apply the Golod–Shafarevich inequality to the class field tower problem. We obtain a criterion for a number field to have an infinite class field tower, and give explicit examples of number fields satisfying this criterion. Downloads Download data is not yet available. Downloads PDF Published 2024-01-26 How to Cite Vilà Casadevall, J. (2024). The Golod–Shafarevich inequality and the class field tower problem. Reports@SCM, 8(1), 1–10. Retrieved from https://revistes.iec.cat/index.php/reports/article/view/151012 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 8 No. 1 (2023) Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Reports@SCM, authors accept the following terms:Authors assign to Societat Catalana de Matemàtiques (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Reports@SCM.Authors answer to Societat Catalana de Matemàtiques for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana de Matemàtiques declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal Reports@SCM is not responsible for the ideas and opinions expressed by the authors of the published articles.