(2+)-Replication and the Baby Monster

The definitions of replicable and completely replicable functions are intimately related to the Hecke operators for the modular group. We define the notions of "(2+)-replicable" and "completely (2+)-replicable" functions by considering the Hecke operators for Γ₀(2)+. We prove tha...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2018
Main Authors: Cummins, C., Matias, R.
Format: Article
Language:English
Published: Інститут математики НАН України 2018
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/209512
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:(2+)-Replication and the Baby Monster / C. Cummins, R. Matias // Symmetry, Integrability and Geometry: Methods and Applications. — 2018. — Т. 14. — Бібліогр.: 25 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id nasplib_isofts_kiev_ua-123456789-209512
record_format dspace
spelling Cummins, C.
Matias, R.
2025-11-24T10:03:41Z
2018
(2+)-Replication and the Baby Monster / C. Cummins, R. Matias // Symmetry, Integrability and Geometry: Methods and Applications. — 2018. — Т. 14. — Бібліогр.: 25 назв. — англ.
1815-0659
2010 Mathematics Subject Classification: 11F22; 11F25
arXiv: 1710.01071
https://nasplib.isofts.kiev.ua/handle/123456789/209512
https://doi.org/10.3842/SIGMA.2018.060
The definitions of replicable and completely replicable functions are intimately related to the Hecke operators for the modular group. We define the notions of "(2+)-replicable" and "completely (2+)-replicable" functions by considering the Hecke operators for Γ₀(2)+. We prove that the McKay-Thompson series for 2⋅B, as computed by Höhn, is completely (2+)-replicable.
The authors would like to thank the referees for their valuable comments and suggestions to improve the quality of the paper. The second author acknowledges financial assistance from the Center for Mathematics of the University of CoimbraUID/MAT/00324/2013, funded by the Portuguese Government through FCT/MCTES and co-funded by the European Regional Development Fund through the Partnership Agreement PT2020.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
(2+)-Replication and the Baby Monster
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title (2+)-Replication and the Baby Monster
spellingShingle (2+)-Replication and the Baby Monster
Cummins, C.
Matias, R.
title_short (2+)-Replication and the Baby Monster
title_full (2+)-Replication and the Baby Monster
title_fullStr (2+)-Replication and the Baby Monster
title_full_unstemmed (2+)-Replication and the Baby Monster
title_sort (2+)-replication and the baby monster
author Cummins, C.
Matias, R.
author_facet Cummins, C.
Matias, R.
publishDate 2018
language English
container_title Symmetry, Integrability and Geometry: Methods and Applications
publisher Інститут математики НАН України
format Article
description The definitions of replicable and completely replicable functions are intimately related to the Hecke operators for the modular group. We define the notions of "(2+)-replicable" and "completely (2+)-replicable" functions by considering the Hecke operators for Γ₀(2)+. We prove that the McKay-Thompson series for 2⋅B, as computed by Höhn, is completely (2+)-replicable.
issn 1815-0659
url https://nasplib.isofts.kiev.ua/handle/123456789/209512
citation_txt (2+)-Replication and the Baby Monster / C. Cummins, R. Matias // Symmetry, Integrability and Geometry: Methods and Applications. — 2018. — Т. 14. — Бібліогр.: 25 назв. — англ.
work_keys_str_mv AT cumminsc 2replicationandthebabymonster
AT matiasr 2replicationandthebabymonster
first_indexed 2025-12-07T17:09:15Z
last_indexed 2025-12-07T17:09:15Z
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