The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms

We prove the Ramanujan and Sato–Tate conjectures for Bianchi modular forms of weight at least $2$ . More generally, we prove these conjectures for all regular algebraic cuspidal automorphic representations of $\operatorname {\mathrm {GL}}_2(\mathbf {A}_F)$ of parallel weight, where F is...

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Main Authors: George Boxer, Frank Calegari, Toby Gee, James Newton, Jack A. Thorne
Format: Article
Language:English
Published: Cambridge University Press 2025-01-01
Series:Forum of Mathematics, Pi
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Online Access:https://www.cambridge.org/core/product/identifier/S2050508624000295/type/journal_article
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author George Boxer
Frank Calegari
Toby Gee
James Newton
Jack A. Thorne
author_facet George Boxer
Frank Calegari
Toby Gee
James Newton
Jack A. Thorne
author_sort George Boxer
collection DOAJ
description We prove the Ramanujan and Sato–Tate conjectures for Bianchi modular forms of weight at least $2$ . More generally, we prove these conjectures for all regular algebraic cuspidal automorphic representations of $\operatorname {\mathrm {GL}}_2(\mathbf {A}_F)$ of parallel weight, where F is any CM field. We deduce these theorems from a new potential automorphy theorem for the symmetric powers of $2$ -dimensional compatible systems of Galois representations of parallel weight.
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series Forum of Mathematics, Pi
spelling doaj-art-d66886d708b340feafe0ea1db7b653fc2025-08-20T02:14:38ZengCambridge University PressForum of Mathematics, Pi2050-50862025-01-011310.1017/fmp.2024.29The Ramanujan and Sato–Tate Conjectures for Bianchi modular formsGeorge Boxer0Frank Calegari1Toby Gee2James Newton3https://orcid.org/0000-0002-9332-5204Jack A. Thorne4https://orcid.org/0000-0002-5900-3260Department of Mathematics, Imperial College London, London SW7 2AZ, UK; E-mail:The University of Chicago, 5734 S University Ave, Chicago, IL 60637, USA; E-mail:Department of Mathematics, Imperial College London, London SW7 2AZ, UK; E-mail:Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, UK;Department of Pure Mathematics and Mathematical Statistics, Wilberforce Road, Cambridge CB3 0WB, UK; E-mail:We prove the Ramanujan and Sato–Tate conjectures for Bianchi modular forms of weight at least $2$ . More generally, we prove these conjectures for all regular algebraic cuspidal automorphic representations of $\operatorname {\mathrm {GL}}_2(\mathbf {A}_F)$ of parallel weight, where F is any CM field. We deduce these theorems from a new potential automorphy theorem for the symmetric powers of $2$ -dimensional compatible systems of Galois representations of parallel weight.https://www.cambridge.org/core/product/identifier/S2050508624000295/type/journal_article11F5511F80
spellingShingle George Boxer
Frank Calegari
Toby Gee
James Newton
Jack A. Thorne
The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms
Forum of Mathematics, Pi
11F55
11F80
title The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms
title_full The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms
title_fullStr The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms
title_full_unstemmed The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms
title_short The Ramanujan and Sato–Tate Conjectures for Bianchi modular forms
title_sort ramanujan and sato tate conjectures for bianchi modular forms
topic 11F55
11F80
url https://www.cambridge.org/core/product/identifier/S2050508624000295/type/journal_article
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