Friedmann equations in modified gravity theories f(R)
DOI:
https://doi.org/10.15381/rif.v24i3.21161Keywords:
General relativy, f(R) gravity, Friedmann equationsAbstract
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.
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Fulgencio Villegas Silva
This work is licensed under a Creative Commons Attribution 4.0 International License.
THE AUTHORS RETAIN THEIR RIGHTS:
a. The authors retain their trademark and patent rights, as well as any process or procedure described in the article.
b. The authors retain the right to share, copy, distribute, perform and publicly communicate the article published in the Revista de Investigación de Física (for example, place it in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigación de Física.
c. The authors retain the right to make a subsequent publication of their work, to use the article or any part of it (for example: a compilation of their works, notes for conferences, thesis, or for a book), provided that they indicate the source. of publication (authors of the work, journal, volume, number and date).
