How a conformally flat (GR)4 impacts gauss-bonnet gravity?

• Main Authors: De, Avik, Loo, Tee-How, Solanki, Raja, Sahoo, P. K.
• Format: Article
• Published: Wiley-V C H Verlag GMBH 2021
• Subjects: QA Mathematics
• Online Access: http://eprints.um.edu.my/26464/

First and foremost, we show that a 4-dimensional conformally flat generalized Ricci recurrent spacetime (GR)4 is an Einstein manifold. We examine such a spacetime as a solution of f(R,G)-gravity theory and it is shown that the additional terms from the modification of the gravitational sector can be...