Friedmann equations in modified gravity theories f(R)

Descripción del Articulo

In this work, the deduction of Friedmann's equations is presented in the context of modified gravity theories f(R); it has been considered to present them as a function of the constant k associated with the curvature of the hypersurface. To deduce it, a revision of the Lagrangian formulation of...

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Detalles Bibliográficos
Autor: Villegas , Fulgencio
Formato: artículo
Fecha de Publicación:2021
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revistas - Universidad Nacional Mayor de San Marcos
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/21161
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/21161
Nivel de acceso:acceso abierto
Materia:General relativy
f(R) gravity
Friedmann equations
Relatividad general
gravedad f(R)
ecuacionesdeFriedmann
Descripción
Sumario:In this work, the deduction of Friedmann's equations is presented in the context of modified gravity theories f(R); it has been considered to present them as a function of the constant k associated with the curvature of the hypersurface. To deduce it, a revision of the Lagrangian formulation of General Relativity and the modified gravity theories f (R) as well as the deduction of the field equation in the environment of the theories f(R) is previously made.
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