Sign Patterns That Allow the Given Matrix

SHAO Yan ling, SUN Liang. Sign Patterns That Allow the Given Matrix[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2003, 12(3): 316-318.

Citation:

SHAO Yan ling, SUN Liang. Sign Patterns That Allow the Given Matrix[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2003, 12(3): 316-318.

Citation:

SHAO Yan ling, SUN Liang. Sign Patterns That Allow the Given Matrix[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2003, 12(3): 316-318.

Abstract

Let P be a property referring to a real matrix. For a sign pattern A, if there exists a real matrix B in the qualitative class of A such that B has property P, then we say A allows P. Three cases that A allows an M matrix, an inverse M matrix and a P 0 matrix are considered. The complete characterizations are obtained.

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