Spacetime algebraic skeleton
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | |
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:29462024-08-05T17:55:40.179310Repositório 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 |
|
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1808128876622118912 |