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A remark on the discrete spectrum of non-self-adjoint Jacobi operators (2101.01974v1)
Published 6 Jan 2021 in math.SP, math.CA, and math.FA
Abstract: We study the trace class perturbations of the whole-line, discrete Laplacian and obtain a new bound for the perturbation determinant of the corresponding non-self-adjoint Jacobi operator. Based on this bound, we refine the Lieb--Thirring inequality due to Hansmann--Katriel. The spectral enclosure for such operators is also discussed.
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