We will briefly review the classical Gauss circle problem, and explain how is defined the
analogous problem in hyperbolic geometry. The tools to analyse the problem are a combination
of classical methods from analytic number theory, and methods from the spectral theory of
forms.
Links:
[1] http://www.mpim-bonn.mpg.de/taxonomy/term/39
[2] http://www.mpim-bonn.mpg.de/node/3444
[3] http://www.mpim-bonn.mpg.de/node/246