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 and Katriel. The spectral enclosure for such operators is also discussed.
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Golinskii, L. Volterra-Type Discrete Integral Equations and Spectra of Non-self-adjoint Jacobi Operators. Integr. Equ. Oper. Theory 93, 63 (2021). https://doi.org/10.1007/s00020-021-02679-9
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DOI: https://doi.org/10.1007/s00020-021-02679-9