General approach to the Lagrangian ambiguity in f(R, T) gravity

Abstract The f(R, T) gravity is a theory whose gravitational action depends arbitrarily on the Ricci scalar, R, and the trace of the stress–energy tensor, T; its field equations also depend on matter Lagrangian, $$\mathscr {L}_{m}$$ L m . In the modified theories of gravity where field equations dep...

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Bibliographic Details
Main Authors: G. A. Carvalho, F. Rocha, H. O. Oliveira, R. V. Lobato
Format: Article
Language:English
Published: SpringerOpen 2021-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-021-08920-4