• 제목/요약/키워드: A modified Frobenous normal form

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The allowance of idempotent of sign pattern matrices

  • Lee, Sang-Gu;Park, Se-Won
    • 대한수학회논문집
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    • 제10권3호
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    • pp.561-573
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    • 1995

  • A matrix whose entries consist of the symbols +, - and 0 is called a sign pattern matrix. In [1], a graph theoretic characterization of sign idempotent pattern matrices was given. A question was given for the sign patterns which allow idempotence. We characterized the sign patterns which allow idempotence in the sign idempotent pattern matrices.

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