Abstract
Sufficient conditions are given, for the preservation of the pure point spectrum, as well as dynamical localization properties, of autonomous and time-periodic perturbations of self-adjoint operators in with simple pure point spectra whose eigenvalues have no accumulation point.
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CRdO thanks partial support by Conselho Nacional de Desenvolvimento Científico e Tecnológico, under contract 303503/2018-1.
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de Oliveira, C.R., Pigossi, M. (2020). Persistence of Point Spectrum for Perturbations of One-Dimensional Operators with Discrete Spectra. In: Miranda, P., Popoff, N., Raikov, G. (eds) Spectral Theory and Mathematical Physics. Latin American Mathematics Series(). Springer, Cham. https://doi.org/10.1007/978-3-030-55556-6_7
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