On some properties of P-matrix sets
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Yoon Song; M. Seetharama Gowda; G. Ravindran
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Article
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1999
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Elsevier Science
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English
β 422 KB
A nonempty set ~ in R "Γn is said to have the row-P-property if every row representative of ~ is a P-matrix. We show that this property is equivalent to saying that for every nonzero x in N" there is an index i with xi(Mx), > 0 for all M E ~,Β’. We relate this concept to the unique solvability of cer