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Periodic perturbations of unbounded Jacobi matrices I: Asymptotics of generalized eigenvectors (1602.06273v4)
Published 19 Feb 2016 in math.SP and math.CA
Abstract: We study asymptotics of generalized eigenvectors associated with Jacobi matrices. Under weak conditions on the coefficients we identify when the matrices are self-adjoint and show that they satisfy strong non-subordinacy condition.