Part of the Grundlehren der mathematischen Wissenschaften book series (GL, volume 222)
The points at infinity (called cusps) on the quotient curves X Г of the upper half plane turn out to be especially interesting.
KeywordsRiemann Surface Modular Form Half Plane Congruence Subgroup Divisor Class
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Unable to display preview. Download preview PDF.
© Springer-Verlag Berlin Heidelberg 1976