Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4623226 | Journal of Mathematical Analysis and Applications | 2007 | 9 Pages |
Abstract
We provide conditions under which a vertical block matrix is a Q-matrix if one or all representative sub-matrices are Q-matrices and vice versa. It is also shown, by means of counterexamples, that Eq. (3) of [A.A. Ebiefung, Existence theory and Q-matrix characterization for the generalized linear complementarity problem, Linear Algebra Appl. 223/224 (1995) 155–169] is incorrect.
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