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Inner totally positive matrices

✍ Scribed by G.M.L. Gladwell

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 229 KB
Volume: 393
Category: Article
ISSN: 0024-3795
DOI: 10.1016/j.laa.2004.04.008

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An n × m real matrix A is said to be totally positive (strictly totally positive) if every minor is nonnegative (positive). In this paper, we study characterizations of these classes of matrices by minors, by their full rank factorization and by their thin QR factorization.