For any closed oriented hyperbolic 3–manifold M and any closed oriented 3–manifold N, we show that M admits a finite cover M′ such that there exists a degree-2 map f:M′→N, ie M virtually 2–dominates N.
All Science Journal Classification (ASJC) codes
- Geometry and Topology
- Degree-nonzero map
- Finite cover
- Hyperbolic 3–manifold