On the integral Hodge conjecture for real abelian threefolds

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Olivier De Gaay Fortman

Organisationseinheiten

Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)221-255
Seitenumfang35
FachzeitschriftJournal fur die Reine und Angewandte Mathematik
Jahrgang2024
Ausgabenummer807
Frühes Online-Datum12 Jan. 2024
PublikationsstatusVeröffentlicht - 1 Feb. 2024

Abstract

We prove the real integral Hodge conjecture for several classes of real abelian threefolds. For instance, we prove the property for real abelian threefolds whose real locus is connected, and for real abelian threefolds A which are the product A = B × E of an abelian surface B and an elliptic curve E with connected real locus E (R). Moreover, we show that every real abelian threefold satisfies the real integral Hodge conjecture modulo torsion, and reduce the principally polarized case to the Jacobian case.

ASJC Scopus Sachgebiete

Zitieren

On the integral Hodge conjecture for real abelian threefolds. / De Gaay Fortman, Olivier.
in: Journal fur die Reine und Angewandte Mathematik, Jahrgang 2024, Nr. 807, 01.02.2024, S. 221-255.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

De Gaay Fortman O. On the integral Hodge conjecture for real abelian threefolds. Journal fur die Reine und Angewandte Mathematik. 2024 Feb 1;2024(807):221-255. Epub 2024 Jan 12. doi: 10.1515/crelle-2023-0082
De Gaay Fortman, Olivier. / On the integral Hodge conjecture for real abelian threefolds. in: Journal fur die Reine und Angewandte Mathematik. 2024 ; Jahrgang 2024, Nr. 807. S. 221-255.
Download
@article{c7be2cb8108e4297b97637e93c6d80f5,
title = "On the integral Hodge conjecture for real abelian threefolds",
abstract = "We prove the real integral Hodge conjecture for several classes of real abelian threefolds. For instance, we prove the property for real abelian threefolds whose real locus is connected, and for real abelian threefolds A which are the product A = B × E of an abelian surface B and an elliptic curve E with connected real locus E (R). Moreover, we show that every real abelian threefold satisfies the real integral Hodge conjecture modulo torsion, and reduce the principally polarized case to the Jacobian case.",
author = "{De Gaay Fortman}, Olivier",
note = "Funding Information: This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No. 754362",
year = "2024",
month = feb,
day = "1",
doi = "10.1515/crelle-2023-0082",
language = "English",
volume = "2024",
pages = "221--255",
journal = "Journal fur die Reine und Angewandte Mathematik",
issn = "0075-4102",
publisher = "Walter de Gruyter GmbH",
number = "807",

}

Download

TY - JOUR

T1 - On the integral Hodge conjecture for real abelian threefolds

AU - De Gaay Fortman, Olivier

N1 - Funding Information: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 754362

PY - 2024/2/1

Y1 - 2024/2/1

N2 - We prove the real integral Hodge conjecture for several classes of real abelian threefolds. For instance, we prove the property for real abelian threefolds whose real locus is connected, and for real abelian threefolds A which are the product A = B × E of an abelian surface B and an elliptic curve E with connected real locus E (R). Moreover, we show that every real abelian threefold satisfies the real integral Hodge conjecture modulo torsion, and reduce the principally polarized case to the Jacobian case.

AB - We prove the real integral Hodge conjecture for several classes of real abelian threefolds. For instance, we prove the property for real abelian threefolds whose real locus is connected, and for real abelian threefolds A which are the product A = B × E of an abelian surface B and an elliptic curve E with connected real locus E (R). Moreover, we show that every real abelian threefold satisfies the real integral Hodge conjecture modulo torsion, and reduce the principally polarized case to the Jacobian case.

UR - http://www.scopus.com/inward/record.url?scp=85182575185&partnerID=8YFLogxK

U2 - 10.1515/crelle-2023-0082

DO - 10.1515/crelle-2023-0082

M3 - Article

AN - SCOPUS:85182575185

VL - 2024

SP - 221

EP - 255

JO - Journal fur die Reine und Angewandte Mathematik

JF - Journal fur die Reine und Angewandte Mathematik

SN - 0075-4102

IS - 807

ER -