Positivity criteria generalizing the leading principal minors criterion

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For each Hermitian matrix, we prove that instead of the leading principal minors some of their sums can be used in the leading principal minors criterion and in other inertia problems.
9 pages

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Representation Theory, 15A57; 15A63; 11E39

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http://salesiana.dossiersoluciones.com/handle/123456789/138092

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0709.2458
 http://arxiv.org/abs/0709.2458
 Positivity, 11 (no. 1) (2007) 191-199
 doi:10.1007/s11117-006-2013-2

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arXiv