Proceedings of the American Mathematical Society

Author(s): Abdellah Sebbar
Journal: Proc. Amer. Math. Soc. 129 (2001), 2517-2527.
MSC (2000): Primary 20H05
Posted: April 17, 2001
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We study and classify all torsion-free genus zero congruence subgroups of the modular group.

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Retrieve articles in Proceedings of the American Mathematical Society with MSC (2000): 20H05

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

DOI: 10.1090/S0002-9939-01-06176-7
PII: S 0002-9939(01)06176-7
Keywords: Automorphic forms, congruence subgroups, genus 0, torsion-free
Received by editor(s): November 20, 1999
Posted: April 17, 2001
Communicated by: Dennis A. Hejhal
Copyright of article: Copyright 2001, American Mathematical Society

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