Complete asymptotic expansion of the spectral function of multidimensional almost-periodic Schrodinger operators
Abstract
We prove the complete asymptotic expansion of the spectral function (the integral kernel of the spectral projection) of a Schrodinger operator H=-+b acting in Rd when the potential b is real and either smooth periodic, or generic quasi-periodic (finite linear combination of exponentials), or belongs to a wide class of almost-periodic functions.
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