Spacetime algebraic skeleton

Detalhes bibliográficos
Autor(a) principal: Aldrovandi, R. [UNESP]
Data de Publicação: 2003
Outros Autores: Barbosa, A. L. [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/225246
Resumo: The cosmological constant is shown to have an algebraic meaning: it is essentially an eigenvalue of a Casimir invariant of the Lorentz group acting on the spaces tangent to every spacetime. This is found in the context of de Sitter spacetimes, for which the Einstein equation is a relation between operators. Nevertheless, the result brings to the foreground the skeleton algebraic structure underlying the geometry of general physical spacetimes, which differ from one another by the fleshening of that structure by different tetrad fields.
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spelling Spacetime algebraic skeletonThe cosmological constant is shown to have an algebraic meaning: it is essentially an eigenvalue of a Casimir invariant of the Lorentz group acting on the spaces tangent to every spacetime. This is found in the context of de Sitter spacetimes, for which the Einstein equation is a relation between operators. Nevertheless, the result brings to the foreground the skeleton algebraic structure underlying the geometry of general physical spacetimes, which differ from one another by the fleshening of that structure by different tetrad fields.Inst. de Fís. Teórica State University of São Paulo UNESP, Rua Pamplona 145, 01405 - 900 São PauloInst. de Fís. Teórica State University of São Paulo UNESP, Rua Pamplona 145, 01405 - 900 São PauloUniversidade Estadual Paulista (UNESP)Aldrovandi, R. [UNESP]Barbosa, A. L. [UNESP]2022-04-28T20:43:08Z2022-04-28T20:43:08Z2003-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject229-232Institute of Physics Conference Series, v. 173, p. 229-232.0951-3248http://hdl.handle.net/11449/2252462-s2.0-4944262812Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInstitute of Physics Conference Seriesinfo:eu-repo/semantics/openAccess2022-04-28T20:43:08Zoai:repositorio.unesp.br:11449/225246Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T20:43:08Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Spacetime algebraic skeleton
title Spacetime algebraic skeleton
spellingShingle Spacetime algebraic skeleton
Aldrovandi, R. [UNESP]
title_short Spacetime algebraic skeleton
title_full Spacetime algebraic skeleton
title_fullStr Spacetime algebraic skeleton
title_full_unstemmed Spacetime algebraic skeleton
title_sort Spacetime algebraic skeleton
author Aldrovandi, R. [UNESP]
author_facet Aldrovandi, R. [UNESP]
Barbosa, A. L. [UNESP]
author_role author
author2 Barbosa, A. L. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Aldrovandi, R. [UNESP]
Barbosa, A. L. [UNESP]
description The cosmological constant is shown to have an algebraic meaning: it is essentially an eigenvalue of a Casimir invariant of the Lorentz group acting on the spaces tangent to every spacetime. This is found in the context of de Sitter spacetimes, for which the Einstein equation is a relation between operators. Nevertheless, the result brings to the foreground the skeleton algebraic structure underlying the geometry of general physical spacetimes, which differ from one another by the fleshening of that structure by different tetrad fields.
publishDate 2003
dc.date.none.fl_str_mv 2003-12-01
2022-04-28T20:43:08Z
2022-04-28T20:43:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv Institute of Physics Conference Series, v. 173, p. 229-232.
0951-3248
http://hdl.handle.net/11449/225246
2-s2.0-4944262812
identifier_str_mv Institute of Physics Conference Series, v. 173, p. 229-232.
0951-3248
2-s2.0-4944262812
url http://hdl.handle.net/11449/225246
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Institute of Physics Conference Series
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 229-232
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1803649736815673344

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