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Classification of torsion-free genus zero congruence groups


Author: Abdellah Sebbar
Journal: Proc. Amer. Math. Soc. 129 (2001), 2517-2527
MSC (2000): Primary 20H05
DOI: https://doi.org/10.1090/S0002-9939-01-06176-7
Published electronically: April 17, 2001
MathSciNet review: 1838372
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Abstract:

We study and classify all torsion-free genus zero congruence subgroups of the modular group.


References [Enhancements On Off] (What's this?)

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Additional Information

Abdellah Sebbar
Affiliation: Department of Mathematics and Statistics, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
Email: sebbar@mathstat.uottawa.ca

DOI: https://doi.org/10.1090/S0002-9939-01-06176-7
Keywords: Automorphic forms, congruence subgroups, genus 0, torsion-free
Received by editor(s): November 20, 1999
Published electronically: April 17, 2001
Communicated by: Dennis A. Hejhal
Article copyright: © Copyright 2001 American Mathematical Society

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