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Localization of eigenvalues for non-self-adjoint Dirac and Klein-Gordon operators (2104.13647v1)
Published 28 Apr 2021 in math.SP, math-ph, math.AP, math.MP, and quant-ph
Abstract: This note aims to give prominence to some new results on the absence and localization of eigenvalues for the Dirac and Klein-Gordon operators, starting from known resolvent estimates already established in the literature combined with the renowned Birman-Schwinger principle.