Non-coherence of some lattices in Isom(H^n) (2006)
Kapovich, M., Potyagailo, L., Vinberg, E. B.
We prove non-coherence of certain families of lattices in the isometry group of the hyperbolic n-space for n>3. For instance, every non-uniform arithmetic lattice in SO(n, 1) is non-coherent,...