On fundamental domains of arithmetic Fuchsian groups
Journal article, 2000

Let K be a totally real algebraic number field and O an order in a quaternion algebra A over K. Assume that the group O^1 of units in O with reduced norm equal to 1 is embedded into PSL_{2}(R) as an arithmetic Fuchsian group. It is shown how Ford's algorithm can be effectively applied in order to determine a fundamental domain of O^1 as well as a complete system of generators of O^1.

fundamental domains

Arithmetic Fuchsian groups

quaternion orders


Stefan Lemurell

Department of Mathematics, Mathematics/Applied Mathematics

University of Gothenburg

Mathematics of Computation

0025-5718 (ISSN) 1088-6842 (eISSN)

Vol. 69 229 339-349

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