대한수학회논문집 (Communications of the Korean Mathematical Society)

  • 제10권3호
  • /
  • Pages.561-573
  • /
  • 1995
  • /
  • 1225-1763(pISSN)
  • /
  • 2234-3024(eISSN)
대한수학회 (Korean Mathematical Society)
권호 표지

The allowance of idempotent of sign pattern matrices

  • Lee, Sang-Gu (Department of Mathematics, Sungkyunkwan University) ;
  • Park, Se-Won (Department of Mathematics, Sungkyunkwan University)
  • 발행 : 1995.07.01
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초록

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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