Abstract
This note presents a class ofQ-matrices which includes Saigal's classN ofQ-matrices with negative principal minors and the classE of strictly semi-monotoneQ-matrices.
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Research supported by the Office of Naval Research under Contract N00014-75-C-0621 NR 047-048.
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Pang, JS. A unification of two classes ofQ-matrices. Mathematical Programming 20, 348–352 (1981). https://doi.org/10.1007/BF01589357
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DOI: https://doi.org/10.1007/BF01589357