Cargando…
Noether symmetries in Gauss–Bonnet-teleparallel cosmology
A generalized teleparallel cosmological model, [Formula: see text] , containing the torsion scalar T and the teleparallel counterpart of the Gauss–Bonnet topological invariant [Formula: see text] , is studied in the framework of the Noether symmetry approach. As [Formula: see text] gravity, where [F...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5116048/ https://www.ncbi.nlm.nih.gov/pubmed/27917070 http://dx.doi.org/10.1140/epjc/s10052-016-4491-0 |
Sumario: | A generalized teleparallel cosmological model, [Formula: see text] , containing the torsion scalar T and the teleparallel counterpart of the Gauss–Bonnet topological invariant [Formula: see text] , is studied in the framework of the Noether symmetry approach. As [Formula: see text] gravity, where [Formula: see text] is the Gauss–Bonnet topological invariant and R is the Ricci curvature scalar, exhausts all the curvature information that one can construct from the Riemann tensor, in the same way, [Formula: see text] contains all the possible information directly related to the torsion tensor. In this paper, we discuss how the Noether symmetry approach allows one to fix the form of the function [Formula: see text] and to derive exact cosmological solutions. |
---|