U.c. De

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gr-qc2024

Pseudo generalized Ricci-recurrent spacetimes and modified gravity

Krishnendu De, Uday Chand De

In this paper we introduce and characterize a pseudo generalized Ricci-recurrent spacetimes and produce an example to verify the existence of such a spacetime. Then we demonstrate…

gr-qc2024

Pseudo generalized Ricci-recurrent spacetimes with certain applications to modified gravity

Uday Chand De, Krishnendu De

In this article we introduce and characterize a pseudo generalized Ricci-recurrent spacetimes. At first, we produce an example to justify the existence of such a spacetime. Then, i…

gr-qc2024

Impact of projective curvature tensor in $f (R, G)$ , $f (R, T)$ and $f (R, L_{m})$ -gravity

Young Jin Suh, Krishnendu De, Uday Chand De

This article concerns with the characterization of a spacetime and modified gravity, such as $f (R, G)$ , $f (R, T)$ and $f (R, L_{m})$ -gravity equipped w…

gr-qc2024

Some curvature properties of perfect fluid spacetimes

Krishnendu De, Uday Chand De, Ljubica Velimirovic

In this paper we assume that a perfect fluid is the source of the gravitational field while analyzing the solutions to the Einstein field equations.

Pseudo generalized Ricci-recurrent spacetimes and modified gravity

Pseudo generalized Ricci-recurrent spacetimes with certain applications to modified gravity

Impact of projective curvature tensor in f(R,G), f(R,T) and f(R,Lm​)-gravity

Some curvature properties of perfect fluid spacetimes

Impact of projective curvature tensor in $f (R, G)$ , $f (R, T)$ and $f (R, L_{m})$ -gravity