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Dry Ten Martini Problem in the non-critical case

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arxiv 2306.16254 v2 pith:44V4JSQQ submitted 2023-06-28 math-ph math.DSmath.MPmath.SP

classification math-phmath.DSmath.MPmath.SP
keywords casemartininon-criticalproblemalmostgapslambdamathieu
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abstract

We solve the Dry Ten Martini Problem in the non-critical case, i.e., all possible spectral gaps are open for almost Mathieu operators with $\lambda\ne \pm 1$.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Log-Hausdorff multifractality of the absolutely continuous spectral measure of the almost Mathieu operator

    math-ph 2025-09 conditional novelty 7.0 of 10

    For subcritical almost Mathieu operators with Diophantine frequency, each exceptional lower-scaling-index level set has Hausdorff dimension 0 but log-Hausdorff dimension 1.

  2. Cantor spectrum for multidimensional quasi-periodic Schr\"odinger operators

    math.SP 2025-06 reject novelty 7.0 of 10

    A dense, positive-Hausdorff-dimension set of frequencies gives the multidimensional almost Mathieu operator a zero-measure Cantor spectrum, and critical almost Mathieu spectra can have arbitrarily small positive box d...

  3. Fibonacci number systems and the localization criterion in the many-body Aubry-Andr\'e model

    cond-mat.stat-mech 2026-08 conditional novelty 6.0 of 10

    The paper introduces a fractional Fibonacci number system and argues that densities with finite base-phi expansions are always localized in the many-body Aubry-André model.

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