Bapat et al. previously described a class of nonnegative matrices dominated by a nonnegative idempotent matrix under the minus partial order. In this paper, we improve upon that description by first presenting a more general result that gives the precise structure of nonnegative matrices dominated b
Remarks on the sharp partial order and the ordering of squares of matrices
✍ Scribed by Jürgen Groß
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 113 KB
- Volume
- 417
- Category
- Article
- ISSN
- 0024-3795
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✦ Synopsis
In this note we revisit the sharp partial order introduced by Mitra [S.K. Mitra, On group inverses and the sharp order, Linear Algebra Appl. 92 (1987) 17-37]. We recall some already known facts from certain matrix decompositions and derive new statements, relating our discussion to recent results in the literature concerned with partial orders between matrices and their squares.
📜 SIMILAR VOLUMES
The present article represents the next step in our ongoing program of classifying the correlations of finite Desarguesian planes. We show that in PG(2, q 2n ), the correlations defined by diagonal matrices, with companion automorphism (q m ), where (m, 2n) = 1, have the following numbers of absolu