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math.NT2015
A classification of -Fuchsian subgroups of Picard modular groups
Jouni Parkkonen, Frédéric Paulin
Given an imaginary quadratic extension of , we give a classification of the maximal nonelementary subgroups of the Picard modular group $\operatorname{PSU}_{1,2}(\ma…
math.NT2015
A survey of some arithmetic applications of ergodic theory in negative curvature
Jouni Parkkonen, Frédéric Paulin
This paper is a survey of some arithmetic applications of techniques in the geometry and ergodic theory of negatively curved Riemannian manifolds, focusing on the joint works of th…