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The classification of discrete 2-generator subgroups of PSL(2,R)

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Abstract

This paper gives a short geometric algorithm for deciding the discreteness of most 2-generator subgroups of PSL(2,R), as well as a self-contained algorithmic approach to the complete classification.

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Authors and Affiliations

  1. Department of Mathematics, State University of New York at Stony Brook, 11794, Stony Brook, NY, USA

    J. Peter Matelski

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  1. J. Peter Matelski
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Partially supported by NSF Grant No. MCS-7801248

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Matelski, J.P. The classification of discrete 2-generator subgroups of PSL(2,R). Israel J. Math. 42, 309–317 (1982). https://doi.org/10.1007/BF02761412

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  • DOI: https://doi.org/10.1007/BF02761412

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