https://doi.org/10.1140/epjc/s10052-020-08641-0
Regular Article – Theoretical Physics
FLRW-cosmology in generic gravity theories
Department of Mathematics, Faculty of Sciences, Bilkent University, 06800, Ankara, Turkey
* e-mail: yheydarzade@bilkent.edu.tr
Received:
30
September
2020
Accepted:
4
November
2020
Published online:
18
November
2020
We prove that for the Friedmann–Lemaitre–Robertson–Walker metric, the field equations of any generic gravity theory in arbitrary dimensions are of the perfect fluid type. The cases of general Lovelock and $${\mathcal {F}}(R, {\mathcal {G}})$$ theories are given as examples.
© The Author(s), 2020
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