Generic singular continuous spectrum for ergodic Schrödinger operators
英文摘要：
We consider Schrödinger operators with ergodic potential $V_ω(n)=f(T^n(ω))$, $n \in \Z$, $ω\in Ω$, where $T:Ω\to Ω$ is a non-periodic homeomorphism. We show that for generic $f \in C(Ω)$, the spectrum has no absolutely continuous component. The proof is based on approximation by discontinuous potentials which can be treated via Kotani Theory.
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