Control for Schrödinger equation on hyperbolic surfaces
arXiv:1707.04990
Abstract
We show that the any nonempty open set on a hyperbolic surface provides observability and control for the time dependent Schrödinger equation. The only other manifolds for which this was previously known are flat tori. The proof is based on the main estimate in Dyatlov-Jin and standard arguments of control theory.
10 pages