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Perturbation of eigenvalues of the Klein Gordon operators II
Published 20 Oct 2022 in math-ph and math.MP | (2210.11623v1)
Abstract: We give estimates for the changes of the eigenvalues of the Klein Gordon operator under the change of the potential. In some relevant situations we improve the existing estimates. We test our results on some exactly solvable models (Coulomb potential, Klein-Gordon oscillator).
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