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math.CV2022
Stability Of Matrix Polynomials In One And Several Variables
Oskar Jakub Szymański, Michał Wojtylak
The paper presents methods of eigenvalue localisation of regular matrix polynomials, in particular, stability of matrix polynomials is investigated. For this aim a stronger notion…
math.CV2013
Global and local behavior of zeros of nonpositive type
Henk de Snoo, Henrik Winkler, Michal Wojtylak
A generalized Nevanlinna function with one negative square has precisely one generalized zero of nonpositive type in the closed extended upper halfplane. The fractional line…