Convex-Hull Of Polynomials And Sums Of 2m-Th Powers

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dc.contributor.authorBradley Delso, Margarita
dc.date.accessioned2023-06-20T16:49:47Z
dc.date.available2023-06-20T16:49:47Z
dc.date.issued1989
dc.description.abstractUsing some elementary theory of convex sets we prove a necessary and a sufficient condition for f ε R[x„ . . ., x„](R being the real numbers) to be a finite sum of 2m-th powers of rational functions in x1, . . ., x n over R[i.e.f ε ∑ R(x)2 m]
dc.description.departmentSección Deptal. de Sistemas Informáticos y Computación
dc.description.facultyFac. de Ciencias Matemáticas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/14814
dc.identifier.issn0764-4442
dc.identifier.urihttps://hdl.handle.net/20.500.14352/57161
dc.issue.number12
dc.journal.titleComptes Rendus de l'Académie des Sciences. Série I. Mathématique
dc.language.isoeng
dc.page.final755
dc.page.initial751
dc.publisherElsevier
dc.rights.accessRightsrestricted access
dc.subject.cdu512.623.5
dc.subject.cdu511.55
dc.subject.keywordrench polynomial ring
dc.subject.keywordfunction field
dc.subject.keywordconvex set
dc.subject.keywordpositive semidefinite polynomial
dc.subject.keywordsum of 2m-th powers
dc.subject.keywordconvex hull
dc.subject.keywordsupporting hyperplane
dc.subject.ucmTeoría de números
dc.subject.ucmÁlgebra
dc.subject.unesco1205 Teoría de Números
dc.subject.unesco1201 Álgebra
dc.titleConvex-Hull Of Polynomials And Sums Of 2m-Th Powers
dc.typejournal article
dc.volume.number309
dspace.entity.typePublication
relation.isAuthorOfPublicationaab2395d-f8da-473c-8a69-a28614b98be3
relation.isAuthorOfPublication.latestForDiscoveryaab2395d-f8da-473c-8a69-a28614b98be3

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