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Spectral Properties of Sign Patterns
Journal article

Spectral Properties of Sign Patterns

Abstract

In this paper, an infinite family of irreducible sign patterns that are spectrally arbitrary, for which the nilpotent-Jacobian method does not apply, is given. It is demonstrated that it is possible for an irreducible sign pattern to be refined inertially arbitrary and not spectrally arbitrary. It is observed that not every nonzero spectrally arbitrary pattern has a signing which is spectrally arbitrary. It is also shown that every superpattern of the reducible pattern $\T_2 \oplus \T_2$ is spectrally arbitrary.

Authors

Cavers M; Fischer J; Vander Meulen KN

Journal

Electronic Journal of Linear Algebra, Vol. 36, No. 36, pp. 183–197

Publisher

University of Wyoming Libraries

Publication Date

January 1, 2020

DOI

10.13001/ela.2020.5057

ISSN

1537-9582

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