On Q-matrices

On Q-matrices

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Article ID: iaor19921149
Country: Netherlands
Volume: 49
Issue: 1
Start Page Number: 139
End Page Number: 141
Publication Date: Nov 1990
Journal: Mathematical Programming
Authors:
Keywords: linear complementarity
Abstract:

Recently, Jeter and Pye gave an example to show that Pang’s conjecture, that L1QR0, is false. This article shows that the above conjecture is true for symmetric matrices. Specifically, it shows that a symmetric copositive matrix is in Q if and only if it is strictly copositive.

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