Abstract
We prove the complete asymptotic expansion of the integrated density of states of a two-dimensional Schrödinger operator with a smooth periodic potential.
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Parnovski, L., Shterenberg, R. Asymptotic expansion of the integrated density of states of a two-dimensional periodic Schrödinger operator. Invent. math. 176, 275–323 (2009). https://doi.org/10.1007/s00222-008-0164-4
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DOI: https://doi.org/10.1007/s00222-008-0164-4