Character Vectors of Strongly Regular Vertex Operator Algebras

We summarize interactions between vertex operator algebras and number theory through the lens of Zhu theory. The paper begins by recalling basic facts on vertex operator algebras (VOAs) and modular forms, and then explains Zhu's theorem on characters of VOAs in a slightly new form. We then axio...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2022
Main Authors: Franc, Cameron, Mason, Geoffrey
Format: Article
Language:English
Published: Інститут математики НАН України 2022
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/211819
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Character Vectors of Strongly Regular Vertex Operator Algebras. Cameron Franc and Geoffrey Mason. SIGMA 18 (2022), 085, 49 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Franc, Cameron
Mason, Geoffrey
author_facet Franc, Cameron
Mason, Geoffrey
citation_txt Character Vectors of Strongly Regular Vertex Operator Algebras. Cameron Franc and Geoffrey Mason. SIGMA 18 (2022), 085, 49 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We summarize interactions between vertex operator algebras and number theory through the lens of Zhu theory. The paper begins by recalling basic facts on vertex operator algebras (VOAs) and modular forms, and then explains Zhu's theorem on characters of VOAs in a slightly new form. We then axiomatize the desirable properties of modular forms that have played a role in Zhu's theorem and related classification results of VOAs. After this, we summarize known classification results in rank two, emphasizing the geometric theory of vector-valued modular forms as a means for simplifying the discussion. We conclude by summarizing some known examples and by providing some new examples in higher ranks. In particular, the paper contains a number of potential character vectors that could plausibly correspond to a VOA, but the existence of a corresponding hypothetical VOA is presently unknown.
first_indexed 2026-03-12T17:11:27Z
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 1815-0659
language English
last_indexed 2026-03-12T17:11:27Z
publishDate 2022
publisher Інститут математики НАН України
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spelling Franc, Cameron
Mason, Geoffrey
2026-01-12T10:18:46Z
2022
Character Vectors of Strongly Regular Vertex Operator Algebras. Cameron Franc and Geoffrey Mason. SIGMA 18 (2022), 085, 49 pages
1815-0659
2020 Mathematics Subject Classification: 17B69; 18M20; 11F03
arXiv:2111.04616
https://nasplib.isofts.kiev.ua/handle/123456789/211819
https://doi.org/10.3842/SIGMA.2022.085
We summarize interactions between vertex operator algebras and number theory through the lens of Zhu theory. The paper begins by recalling basic facts on vertex operator algebras (VOAs) and modular forms, and then explains Zhu's theorem on characters of VOAs in a slightly new form. We then axiomatize the desirable properties of modular forms that have played a role in Zhu's theorem and related classification results of VOAs. After this, we summarize known classification results in rank two, emphasizing the geometric theory of vector-valued modular forms as a means for simplifying the discussion. We conclude by summarizing some known examples and by providing some new examples in higher ranks. In particular, the paper contains a number of potential character vectors that could plausibly correspond to a VOA, but the existence of a corresponding hypothetical VOA is presently unknown.
Franc was supported by an NSERC Discovery Grant, and Mason was supported by grant #427007 from the Simons Foundation. We thank these institutions for their support. We also thank the anonymous referees for their helpful comments on an earlier draft of this paper.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Character Vectors of Strongly Regular Vertex Operator Algebras
Article
published earlier
spellingShingle Character Vectors of Strongly Regular Vertex Operator Algebras
Franc, Cameron
Mason, Geoffrey
title Character Vectors of Strongly Regular Vertex Operator Algebras
title_full Character Vectors of Strongly Regular Vertex Operator Algebras
title_fullStr Character Vectors of Strongly Regular Vertex Operator Algebras
title_full_unstemmed Character Vectors of Strongly Regular Vertex Operator Algebras
title_short Character Vectors of Strongly Regular Vertex Operator Algebras
title_sort character vectors of strongly regular vertex operator algebras
url https://nasplib.isofts.kiev.ua/handle/123456789/211819
work_keys_str_mv AT franccameron charactervectorsofstronglyregularvertexoperatoralgebras
AT masongeoffrey charactervectorsofstronglyregularvertexoperatoralgebras