Mathematical Research Letters

Volume 16, Issue 4, July 2009 pp. 651-662.

Controlling manifold covers of orbifolds

Authors: D. B. McReynolds
Author institution: University of Chicago

Summary: In this article we prove a generalization of Selberg's lemma on the existence of torsion free, finite index subgroups of arithmetic groups. Some of the geometric applications are the resolution a conjecture of Nimershiem and answers to questions of Long--Reid and the author.

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