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Eigenvalue fields of hyperbolic orbifolds

Authors: Emily Hamilton and Alan W. Reid
Journal: Proc. Amer. Math. Soc. 132 (2004), 2497-2503
MSC (2000): Primary 20H10; Secondary 20G30
Published electronically: April 21, 2004
MathSciNet review: 2054772
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Abstract: In this paper, we prove that if $\Gamma$ is a non-elementary subgroup of $\mathrm{O}_{\mathrm{o}}(n,1,\mathbb{R} )$, with $n\ge 2$, then the eigenvalue field of $\Gamma$ has infinite degree over $\mathbb{Q} $.

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Additional Information

Emily Hamilton
Affiliation: Department of Mathematics and Computer Science, Emory University, Atlanta, Georgia 30322

Alan W. Reid
Affiliation: Department of Mathematics, University of Texas, Austin, Texas 78712

Received by editor(s): January 15, 2001
Published electronically: April 21, 2004
Additional Notes: The first author was partially supported by NSF Grant DMS 9973317
The second author was partially supported by the NSF and the Alfred P. Sloan Foundation.
Communicated by: Linda Keen
Article copyright: © Copyright 2004 American Mathematical Society

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