Title: On the Spectrum of Multi-Frequency Quasiperiodic Schrödinger Operators with Large Coupling,
Abstract: We study multi-frequency quasiperiodic Schrödinger operators on
$\mathbb{Z} $. We prove that for a large real analytic potential satisfying
certain restrictions the spectrum consists of a single interval. The result is
a consequence of a criterion for the spectrum to contain an interval at a given
location that we establish non-perturbatively in the regime of positive
Lyapunov exponent.