Abstract
The block analogues of the theorems on inclusion regions for the eigenvalues of normal matrices are given. By an inclusion region for a given matrix A we mean a region of the complex plane that contains at least one of the eigenvalues of A. Some nonsingularity results for partitioned matrices are also presented.
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APA
Kierzkowski, J., & Smoktunowicz, A. (2011). Block normal matrices and gershgorin-type discs. Electronic Journal of Linear Algebra, 22, 1059–1069. https://doi.org/10.13001/1081-3810.1491
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