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Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/40344
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dc.contributor.authorBebiano, N.pt_PT
dc.contributor.authorLemos, R.pt_PT
dc.contributor.authorSoares, G.pt_PT
dc.date.accessioned2024-01-29T17:10:27Z-
dc.date.available2024-01-29T17:10:27Z-
dc.date.issued2023-
dc.identifier.issn0308-1087pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/40344-
dc.description.abstractIn this paper a necessary and sufficient condition for hyperbolicity of the indefinite numerical range is established. As a consequence, an indefinite version of Brown–Spitkovsky theorem stating the ellipticity of the numerical range of certain tridiagonal matrices is revisited. This result leads to necessary and sufficient conditions for hyperbolicity of indefinite numerical ranges of new classes of tridiagonal matrices.pt_PT
dc.language.isoengpt_PT
dc.publisherTaylor & Francispt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00013%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04106%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00324%2F2020/PTpt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectIndefinite numerical rangept_PT
dc.subjectClassical numerical rangept_PT
dc.subjectJ-Hermitian matrixpt_PT
dc.subjectHyperbolical range theorempt_PT
dc.titleOn the hyperbolicity of the Krein space numerical rangept_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.firstPage1pt_PT
degois.publication.lastPage21pt_PT
degois.publication.titleLinear and Multilinear Algebrapt_PT
dc.relation.publisherversionhttps://www.tandfonline.com/action/journalInformation?journalCode=glma20pt_PT
dc.identifier.doi10.1080/03081087.2023.2251648pt_PT
dc.identifier.essn0308-1087pt_PT
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