On the preservation of absolutely continuous spectrum for Schrodinger operators
classification
🧮 math-ph
math.MPmath.SP
keywords
operatorspreservationschrodingerspectrumabsolutelybethecaleyconsidered
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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.
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