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Almost strict total positivity and a class of Hurwitz polynomials

dc.contributor.authorDimitrov, D. K.
dc.contributor.authorPena, J. M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Zaragoza
dc.date.accessioned2014-05-20T14:01:34Z
dc.date.available2014-05-20T14:01:34Z
dc.date.issued2005-02-01
dc.description.abstractWe establish sufficient conditions for a matrix to be almost totally positive, thus extending a result of Craven and Csordas who proved that the corresponding conditions guarantee that a matrix is strictly totally positive. Then we apply our main result in order to obtain a new criteria for a real algebraic polynomial to be a Hurwitz one. The properties of the corresponding extremal Hurwitz polynomials are discussed. (C) 2004 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, IBILCE, Dept Ciência Comp & Estatist, São Paulo, Brazil
dc.description.affiliationUniv Zaragoza, Dept Matemat Aplicada, E-50009 Zaragoza, Spain
dc.description.affiliationUnespUniv Estadual Paulista, IBILCE, Dept Ciência Comp & Estatist, São Paulo, Brazil
dc.format.extent212-223
dc.identifierhttp://dx.doi.org/10.1016/j.jat.2004.10.010
dc.identifier.citationJournal of Approximation Theory. San Diego: Academic Press Inc. Elsevier B.V., v. 132, n. 2, p. 212-223, 2005.
dc.identifier.doi10.1016/j.jat.2004.10.010
dc.identifier.fileWOS000227196700004.pdf
dc.identifier.issn0021-9045
dc.identifier.lattes1681267716971253
dc.identifier.urihttp://hdl.handle.net/11449/21728
dc.identifier.wosWOS:000227196700004
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Approximation Theory
dc.relation.ispartofjcr0.939
dc.relation.ispartofsjr0,907
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjecttotally positive matrixpt
dc.subjectstrictly totally positive matrixpt
dc.subjectshadows' lemmapt
dc.subjectHurwitz polynomialpt
dc.subjectentire function in the Laguerre-Polya classpt
dc.titleAlmost strict total positivity and a class of Hurwitz polynomialsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes1681267716971253
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt
unesp.departmentCiências da Computação e Estatística - IBILCEpt

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