Conservation of the numbers of characteristic values of polynomial and entire matrix pencils inside and outside a circle under perturbations
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Publication:4985418
DOI10.1142/S1793557120500977OpenAlexW2912046967MaRDI QIDQ4985418
Publication date: 23 April 2021
Published in: Asian-European Journal of Mathematics (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1142/s1793557120500977
Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Eigenvalue problems for linear operators (47A75) Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) (47A56)
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