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    Spectral approximation of banded Laurent matrices with localized random perturbations

    This paper explores the relationship between the spectra of perturbed infinite banded Laurent matricesL(a)+K and their approximations by perturbed circulant matricesC n (a)+P n KP n for largen. The entriesK jk of...

    A. Böttcher, M. Embree, M. Lindner in Integral Equations and Operator Theory (2002)