JP Journal of Algebra, Number Theory and Applications
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Abstract: An sign pattern A
is a spectrally arbitrary pattern if, for anygiven
real monic polynomial of degree n,
there is a real matrix having characteristic polynomial We consider the sign pattern introduced in [2] and prove that
for and is not a spectrally arbitrarypattern.
Keywords and phrases: sign pattern, spectrally arbitrary pattern, nilpotent, inertia.
