Seminar

We wish to prove the theorem of the title.  The key topological points are as follows.  Agol, Wise, and company show that a finite-volume hyperbolic three-manifold is virtually fibered. Thurston tells us that, for hyperbolic surface bundles over the circle, the monodromy stretches the fiber group exponentially.  These are the necessary ingredients; we can now repeat Gilman's proof from last week.