The curve complex and covers via hyperbolic 3-manifolds
arXiv:1104.3492 · doi:10.1007/s10711-012-9703-7
Abstract
Rafi and Schleimer recently proved that the natural relation between curve complexes induced by a covering map between two surfaces is a quasi-isometric embedding. We offer another proof of this result using a distance estimate via hyperbolic 3-manifolds.
5 pages