Exclusion sets for eigenvalues of matrices

Published 4 May 2017 in math.SP | (1705.01758v2)

Abstract: To locate all eigenvalues of a matrix more precisely, we exclude some sets which do not include any eigenvalue of the matrix from the well-known Brauer set to give two new Brauer-type eigenvalue inclusion sets. And it is also shown that the new sets are contained in the Brauer set.

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