• Title/Summary/Keyword: tripath

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Tripotence for irreducible sign-pattern matrices

  • Gwang Yeon Lee;Yue Ho Lee;Seok Zun Song
    • Communications of the Korean Mathematical Society
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    • v.12 no.1
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    • pp.27-36
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    • 1997
  • 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.

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