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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23843
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dc.contributor.authorAldrovandi, R.-
dc.contributor.authorCuzinatto, R. R.-
dc.contributor.authorMedeiros, L. G.-
dc.date.accessioned2014-05-20T14:07:59Z-
dc.date.accessioned2016-10-25T17:13:38Z-
dc.date.available2014-05-20T14:07:59Z-
dc.date.available2016-10-25T17:13:38Z-
dc.date.issued2007-11-01-
dc.identifierhttp://dx.doi.org/10.1007/s10714-007-0490-7-
dc.identifier.citationGeneral Relativity and Gravitation. New York: Springer/plenum Publishers, v. 39, n. 11, p. 1813-1832, 2007.-
dc.identifier.issn0001-7701-
dc.identifier.urihttp://hdl.handle.net/11449/23843-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/23843-
dc.description.abstractA detailed examination of the Killing equations in Robertson-Walker coordinates shows how the addition of matter and/or radiation to a de Sitter Universe breaks the symmetry generated by four of its Killing fields. The product U = a(2) H of the squared scale parameter by the time-derivative of the Hubble function encapsulates the relationship between the two cases: the symmetry is maximal when U is a constant, and reduces to the six-parameter symmetry of a generic Friedmann-Robertson-Walker model when it is not. As the fields physical interpretation is not clear in these coordinates, comparison is made with the Killing fields in static coordinates, whose interpretation is made clearer by their direct relationship to the Poincare group generators via Wigner-Inonu contractions.en
dc.format.extent1813-1832-
dc.language.isoeng-
dc.publisherSpringer-
dc.sourceWeb of Science-
dc.subjectkilling fieldspt
dc.subjectstandard modelpt
dc.subjectde Sitter modelpt
dc.titlePrimeval symmetriesen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.identifier.doi10.1007/s10714-007-0490-7-
dc.identifier.wosWOS:000250205700005-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofGeneral Relativity and Gravitation-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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