Abstract
We construct multidimensional almost-periodic Schrödinger operators whose spectrum has zero lower box-counting dimension. In particular, the spectrum in these cases is a generalized Cantor set of zero Lebesgue measure.
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We are grateful to Leonid Parnovski for useful comments on an earlier version of this manuscript.
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Communicated by Alain Joye.
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David Damanik was supported in part by NSF Grant DMS–1700131. Jake Fillman was supported in part by an AMS-Simons Travel Grant, 2016–2018. Anton Gorodetski was supported in part by Simons Fellowship (Grant Number 556910).
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Damanik, D., Fillman, J. & Gorodetski, A. Multidimensional Almost-Periodic Schrödinger Operators with Cantor Spectrum. Ann. Henri Poincaré 20, 1393–1402 (2019). https://doi.org/10.1007/s00023-019-00768-5
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DOI: https://doi.org/10.1007/s00023-019-00768-5