Ending lamination theorem

The Ending Lamination Theorem is a significant result in the field of three-dimensional topology, particularly in the study of 3-manifolds and group actions on them. It is primarily associated with the work of Ian Agol and others in the context of geometric topology. In simple terms, the Ending Lamination Theorem provides a way to understand the behavior of hyperbolic 3-manifolds with "infinite area" or those that are "differently closed.