Supersingular Elliptic Curves and Moonshine

We generalize a theorem of Ogg on supersingular j-invariants to supersingular elliptic curves with level. Ogg observed that the level one case yields a characterization of the primes dividing the order of the monster. We show that the corresponding analyses for higher levels give analogous character...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2019
Main Author: Aricheta, V.M.
Format: Article
Language:English
Published: Інститут математики НАН України 2019
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/210068
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Supersingular Elliptic Curves and Moonshine / V.M. Aricheta // Symmetry, Integrability and Geometry: Methods and Applications. — 2019. — Т. 15. — Бібліогр.: 32 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Aricheta, V.M.
author_facet Aricheta, V.M.
citation_txt Supersingular Elliptic Curves and Moonshine / V.M. Aricheta // Symmetry, Integrability and Geometry: Methods and Applications. — 2019. — Т. 15. — Бібліогр.: 32 назв. — англ.
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We generalize a theorem of Ogg on supersingular j-invariants to supersingular elliptic curves with level. Ogg observed that the level one case yields a characterization of the primes dividing the order of the monster. We show that the corresponding analyses for higher levels give analogous characterizations of the primes dividing the orders of other sporadic simple groups (e.g., baby monster, Fischer's largest group). This situates Ogg's theorem in a broader setting. More generally, we characterize, in terms of supersingular elliptic curves with level, the primes arising as orders of Fricke elements in centralizer subgroups of the monster. We also present a connection between supersingular elliptic curves and umbral moonshine. Finally, we present a procedure for explicitly computing invariants of supersingular elliptic curves with level structure.
first_indexed 2025-12-07T21:24:16Z
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id nasplib_isofts_kiev_ua-123456789-210068
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 1815-0659
language English
last_indexed 2025-12-07T21:24:16Z
publishDate 2019
publisher Інститут математики НАН України
record_format dspace
spelling Aricheta, V.M.
2025-12-02T09:37:25Z
2019
Supersingular Elliptic Curves and Moonshine / V.M. Aricheta // Symmetry, Integrability and Geometry: Methods and Applications. — 2019. — Т. 15. — Бібліогр.: 32 назв. — англ.
1815-0659
2010 Mathematics Subject Classification: 14H52; 11F06; 11F11; 11F22; 11F37; 20D08
arXiv: 1809.07421
https://nasplib.isofts.kiev.ua/handle/123456789/210068
https://doi.org/10.3842/SIGMA.2019.007
We generalize a theorem of Ogg on supersingular j-invariants to supersingular elliptic curves with level. Ogg observed that the level one case yields a characterization of the primes dividing the order of the monster. We show that the corresponding analyses for higher levels give analogous characterizations of the primes dividing the orders of other sporadic simple groups (e.g., baby monster, Fischer's largest group). This situates Ogg's theorem in a broader setting. More generally, we characterize, in terms of supersingular elliptic curves with level, the primes arising as orders of Fricke elements in centralizer subgroups of the monster. We also present a connection between supersingular elliptic curves and umbral moonshine. Finally, we present a procedure for explicitly computing invariants of supersingular elliptic curves with level structure.
We are immensely indebted to John Duncan for his constant advice and encouragement throughout the project, without which this work would not have been possible. We are also grateful to Luca Candelori, Scott Carnahan, Simon Norton, Preston Wake, Robert Wilson, and David Zureick-Brown for taking the time to answer our questions, and to Ken Ono for posing the original problem, which motivated this research. We thank the referees for the helpful suggestions and comments. We wrote part of this paper during our stay at the Erwin Schr¨odinger International Institute for Mathematics and Physics (ESI) from 10 to 14 September 2018; we are thankful to ESI for their support.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Supersingular Elliptic Curves and Moonshine
Article
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spellingShingle Supersingular Elliptic Curves and Moonshine
Aricheta, V.M.
title Supersingular Elliptic Curves and Moonshine
title_full Supersingular Elliptic Curves and Moonshine
title_fullStr Supersingular Elliptic Curves and Moonshine
title_full_unstemmed Supersingular Elliptic Curves and Moonshine
title_short Supersingular Elliptic Curves and Moonshine
title_sort supersingular elliptic curves and moonshine
url https://nasplib.isofts.kiev.ua/handle/123456789/210068
work_keys_str_mv AT arichetavm supersingularellipticcurvesandmoonshine