204 citations · 523 across the 23 of their papers we have counts for
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gr-qc2018
Cosmological perfect-fluids in f(R) gravity
Salvatore Capozziello, Carlo Alberto Mantica, Luca Guido Molinari
We show that an n-dimensional generalized Robertson-Walker (GRW) space-time with divergence-free conformal curvature tensor exhibits a perfect fluid stress-energy tensor for any f(…
math.DG2018
A note on Concircular Structure space-times
Carlo Alberto Mantica, Luca Guido Molinari
In this note we show that Lorentzian Concircular Structure manifolds (LCS)_n coincide with Generalized Robertson-Walker space-times.
math-ph2018
A simple property of the Weyl tensor for a shear, vorticity and acceleration-free velocity field
Luca Guido Molinari, Carlo Alberto Mantica
We prove that, in a space-time of dimension n>3 with a velocity field that is shear-free, vorticity-free and acceleration-free, the covariant divergence of the Weyl tensor is zero…