W.C. Tang, H. Rosen, et al.
SPIE Optics, Electro-Optics, and Laser Applications in Science and Engineering 1991
Paper
Circular discs containing eigenvalues of normal matrices
Abstract
We give an inclusion theorem for the eigenvalues of a normal matrix using discs similar to the Gerschgorin discs. This theorem is used to obtain bounds on the eigenvalues of Jordan products, and a variant of Kantorovich's inequality for normal matrices. © 1989.
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