%0 Journal Article
%T Cusps of Picard modular surfaces
%A Matthew Stover
%J Mathematics
%D 2010
%I arXiv
%X We determine the number of cusps of minimal Picard modular surfaces. The proof also counts cusps of other Picard modular surfaces of arithmetic interest. Consequently, for each N > 0 there are finitely many commensurability classes of nonuniform arithmetic lattices in SU(2, 1) that contain an N-cusped surface. We also discuss a higher-rank analogue.
%U http://arxiv.org/abs/1005.1980v2