Summary
It is shown that certain pairs of square matrices possess properties that are analogous to the properties of a singleP 0 matrix. The usefulness of this observation, to provide extensions of earlier results, is also demonstrated.
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Willson, A.N. A useful generalization of theP 0 matrix concept. Numer. Math. 17, 62–70 (1971). https://doi.org/10.1007/BF01395867
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DOI: https://doi.org/10.1007/BF01395867