On the smoothness of gap boundaries for generalized Harper operators

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Results concerning set theoretic continuity properties of the spectrum of the Harper operator are extended to a large class (generalized Harper operators (GHO)) of operators in $L^{2}(\bZ^{2})$.
19 pages, typos corrected

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Mathematical Physics, Spectral Theory, 81Q10; 47B37

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http://salesiana.dossiersoluciones.com/handle/123456789/99757

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math-ph/0309009
 http://arxiv.org/abs/math-ph/0309009

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arXiv