Discreteness of Ultra-Parallel Complex Hyperbolic Triangle Groups of Type [m1,m2,0]
- Publication date
- Publisher
Abstract
In this paper we consider ultra-parallel complex hyperbolic triangle groups of type [m1,m2,0], i.e. groups of isometries of the complex hyperbolic plane, generated by complex reflections in three ultra-parallel complex geodesics two of which intersect on the boundary. We prove some discreteness and non-discreteness results for these groups and discuss the connection between the discreteness results and ellipticity of certain group elements