To conserve, or not to conserve : a review of nonconservative theories of gravity.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorVelten, Hermano Endlich Schneider-
Autor(es): dc.creatorCaramês, Thiago Roberto da Possa-
Data de aceite: dc.date.accessioned2025-08-21T15:44:42Z-
Data de disponibilização: dc.date.available2025-08-21T15:44:42Z-
Data de envio: dc.date.issued2023-01-18-
Data de envio: dc.date.issued2023-01-18-
Data de envio: dc.date.issued2020-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/16015-
Fonte completa do material: dc.identifierhttps://doi.org/10.3390/universe7020038-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1023083-
Descrição: dc.descriptionApart from the familiar structure firmly-rooted in the general relativistic field equations where the energy–momentum tensor has a null divergence i.e., it conserves, there exists a considerable number of extended theories of gravity allowing departures from the usual conservative framework. Many of these theories became popular in the last few years, aiming to describe the phenomenology behind dark matter and dark energy. However, within these scenarios, it is common to see attempts to preserve the conservative property of the energy–momentum tensor. Most of the time, it is done by means of some additional constraint that ensures the validity of the standard conservation law, as long as this option is available in the theory. However, if no such extra constraint is available, the theory will inevitably carry a non-trivial conservation law as part of its structure. In this work, we review some of such proposals discussing the theoretical construction leading to the non-conservation of the energy–momentum tensor.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Fonte: o PDF do artigo.-
Palavras-chave: dc.subjectGeneral relativity-
Palavras-chave: dc.subjectCosmology-
Palavras-chave: dc.subjectExtended theories of gravity-
Título: dc.titleTo conserve, or not to conserve : a review of nonconservative theories of gravity.-
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