2 problems

Let $M$ be a tame, finite volume, negatively curved manifold, and let $\widetilde{M}$ be its universal cover. A parabolic element is an element of $\pi_1(M)$ acting parabolically o…

Let $M$ be a noncompact, complete, finite volume manifold with sectional curvature $K(M)<0$, and let $\widetilde{M}$ be its universal cover. An embedded half flat is an embedded co…