Rigidity of Kleinian Groups and Zariski Density in Higher Rank

Hee Oh

Discrete subgroups of PSL(2,C) are called Kleinian groups and they are fundamental groups of complete oriented hyperbolic 3-manifolds/orbifolds. Except for countably many conjugacy classes, all Kleinian groups have infinite co-volume in PSL(2, C).

https://www.ias.edu/video/rigidity-kleinian-groups-and-zariski-density-higher-rank