The Ten Martini Problem
classification
🧮 math.DS
math-phmath.MPmath.SP
keywords
martiniproblemalmostcantorconjecturecouplingfrequenciesirrational
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We prove the conjecture (known as the ``Ten Martini Problem'' after Kac and Simon) that the spectrum of the almost Mathieu operator is a Cantor set for all non-zero values of the coupling and all irrational frequencies.
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