Gershgorin type sets for eigenvalues of matrix polynomials
Christina Michailidou, Panayiotis Psarrakos · Electronic Journal of Linear Algebra · 2018
New localization results for polynomial eigenvalue problems are obtained, by extending the notions of the Gershgorin set, the generalized Gershgorin set, the Brauer set and the Dashnic-Zusmanovich set to the case of matrix polynomials.