On the preservation of absolutely continuous spectrum for Schrodinger operators

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We present general principles for the preservation of a.c. spectrum under weak perturbations. The Schrodinger operators on the strip and on the Caley tree (Bethe lattice) are considered.
Corrected and extended version

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Mathematical Physics, Spectral Theory, 35P25, 47A40

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http://salesiana.dossiersoluciones.com/handle/123456789/57960

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math-ph/0501046
 http://arxiv.org/abs/math-ph/0501046

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arXiv