Tripotence for irreducible sign-pattern matrices
Commun. Korean Math. Soc. 1997 Vol. 12, No. 1, 27-36
Gwang-Yeon Lee, Yue-Ho Lee, Seok-Zun Song
Hanseo University, Sung Kyun Kwan University, Cheju National University
Abstract : A matrix whose entries consist of the symbols $+,-,0$ is called a sign-pattern matrix. We characterize the $n\times n$ irreducible sign-pattern matrices that are sign tripotent.
Keywords : irreducible, cycle, sign tripotence, tripath
MSC numbers : 05C50, 15A03
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