Intervals of P-matrices and related matrices |
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| Authors: | S. Białas J. Garloff |
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| Affiliation: | Institute of Mathematics Academy of Mining and Metallurgy Cracow, Poland;Institute for Applied Mathematics University of Freiburg i. Br. Freiburg, West Germany |
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| Abstract: | We consider intervals of matrices with respect to the usual entrywise partial ordering. Necessary and sufficient conditions are given for an interval of matrices to contain only P-matrices (i.e. matrices having only positive principal minors) or related matrices. |
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