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arxiv: 1310.8553 · v2 · pith:NLFDC5NDnew · submitted 2013-10-31 · 🧮 math-ph · math.MP· math.SP

Frequency dependence of H\"older continuity for quasiperiodic Schr\"odinger operators

classification 🧮 math-ph math.MPmath.SP
keywords betaolderdensitylambdalfloormeasureodingeroperators
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We prove estimates on the H\"older exponent of the density of states measure for discrete Schr\"odinger operators with potential of the form $V(n) = \lambda(\lfloor(n+1)\beta\rfloor - \lfloor n\beta\rfloor)$, with $\lambda$ large enough, and conclude that for almost all values of $\beta$, the density of states measure is not H\"older continuous.

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