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Feb 27, 2013 at 20:11 vote accept expmat
Feb 25, 2013 at 23:51 comment added Misha @Marc: stankewicz already wrote this as an answer, so I hope it will suffice.
Feb 25, 2013 at 21:06 comment added Marc Palm @Misha: pls post this as an answer.
Feb 25, 2013 at 20:38 comment added Misha Say, the compactified quotient could be the 2-sphere, whose group of automorphisms is $PSL(2,C)$, while the quotient $N(\Gamma)/\Gamma$ is always finite.
Feb 25, 2013 at 20:31 history answered Serge Lvovski CC BY-SA 3.0