Article ID Journal Published Year Pages File Type
4623226 Journal of Mathematical Analysis and Applications 2007 9 Pages PDF
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.

Related Topics
Physical Sciences and Engineering Mathematics Analysis