Collisions at infinity in hyperbolic manifolds
  For a complete, finite volume real hyperbolic n-manifold M, we investigate the map between homology of the cusps of M and the homology of $M$. Our main result provides a proof of a result required in a recent paper of Frigerio, Lafont, and Sisto. 
D. B. McReynolds, Alan W. Reid, and Matthew Stover
math.GT