# Hyperbolic 3-Manifolds

The study of hyperbolic 3-manifolds draws together the beautiful subjects of discrete group actions, conformal dynamical systems, and hyperbolic geometry. Thurston’s geometrization conjecture and his work on the Haken case led to a beautiful new geometric perspective on the deformation space raising the question of how parameters “at infinity” determine the interior geometry of the manifold. The *Model Manifold Theorem* of [BCM] establishes a combinatorial model for the ends of such a manifold, proving Thurston’s ending lamination conjecture. Ongoing work seeks to make these models effective, and to relate them to new geometric flows on the deformation space connecting the deformation theory to Witten’s notion of *Renormalized Volume* from conformal field theory.

## Related Papers

### The Weil-Petersson metric and volumes of 3-dimensional hyperbolic convex cores

*J. Amer. Math. Soc.* 16 (2003), pp. 495-535.

### The classification of Kleinian surface groups II: the ending lamination conjecture (arXiv)

(With Dick Canary and Yair Minsky). *Annals of Math* 176 (2012), pp. 1-149.

### Inflexibility, Weil-Petersson distance, and volumes of fibered 3-manifolds (arXiv)

(With Ken Bromberg). *Math. Res. Lett.* 23 (2016) pp. 649-674.