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arxiv: 1708.01762 · v4 · submitted 2017-08-05 · 🧮 math.SP

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Exponential Decay of the lengths of Spectral Gaps for Extended Harper's Model with Liouvillean Frequency

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keywords decayextendedfrequencygapsharperlengthsliouvilleanmodel
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In this paper, we study the non-self dual extended Harper's model with Liouvillean frequency. By establishing quantitative reducibility results together with the averaging method, we prove that the lengths of spectral gaps decay exponentially.

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