Total nonnegativity of finite Hurwitz matrices and root location of polynomials

Fuente: arXiv
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Auteurs principaux: Adm, Mohammad, Garloff, Jürgen, Tyaglov, Mikhail
Format: Preprint
Publié: 2017
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author Adm, Mohammad
Garloff, Jürgen
Tyaglov, Mikhail
author_facet Adm, Mohammad
Garloff, Jürgen
Tyaglov, Mikhail
contents In 1970, B.A. Asner, Jr., proved that for a real quasi-stable polynomial, i.e., a polynomial whose zeros lie in the \emph{closed} left half-plane of the complex plane, its finite Hurwitz matrix is totally nonnegative, i.e., all its minors are nonnegative, and that the converse statement is not true. In this work, we explain this phenomenon in detail, and provide necessary and sufficient conditions for a real polynomial to have a totally nonnegative finite Hurwitz matrix.
format Preprint
id arxiv_https___arxiv_org_abs_1711_04651
institution arXiv
publishDate 2017
record_format arxiv
spellingShingle Total nonnegativity of finite Hurwitz matrices and root location of polynomials
Adm, Mohammad
Garloff, Jürgen
Tyaglov, Mikhail
Classical Analysis and ODEs
15B48, 26C10 (Primary), 15A18, 15B05, 93D20 (Secondary)
In 1970, B.A. Asner, Jr., proved that for a real quasi-stable polynomial, i.e., a polynomial whose zeros lie in the \emph{closed} left half-plane of the complex plane, its finite Hurwitz matrix is totally nonnegative, i.e., all its minors are nonnegative, and that the converse statement is not true. In this work, we explain this phenomenon in detail, and provide necessary and sufficient conditions for a real polynomial to have a totally nonnegative finite Hurwitz matrix.
title Total nonnegativity of finite Hurwitz matrices and root location of polynomials
topic Classical Analysis and ODEs
15B48, 26C10 (Primary), 15A18, 15B05, 93D20 (Secondary)
url https://arxiv.org/abs/1711.04651