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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


The DAD theorem for arbitrary row sums

Author: Richard A. Brualdi
Journal: Proc. Amer. Math. Soc. 45 (1974), 189-194
MSC: Primary 15A48
MathSciNet review: 0354737
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Abstract: Given an $ m \times m$ symmetric nonnegative matrix $ A$ and a positive vector $ R = ({r_1}, \cdots ,{r_m})$, necessary and sufficient conditions are obtained in order that there exist a diagonal matrix $ D$ with positive main diagonal such that DAD has row sum vector $ R$.

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PII: S 0002-9939(1974)0354737-8
Keywords: Nonnegative matrix, diagonal matrix, symmetric matrix, completely reducible, completely decomposable, row sum vector
Article copyright: © Copyright 1974 American Mathematical Society