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.
