1 citations · 1 across the 2 of their papers we have counts for
2 papers
gr-qc2021
Necessity of spacetime shear for cosmological gravitational waves
Roger M. Mayala, Rituparno Goswami, Sunil D. Maharaj
We show that a general but shear-free perturbation of homogeneous and isotropic universes are necessarily silent, without any gravitational waves. We prove this in two steps. First…
gr-qc2020★ 1 cited
Matter shear and vorticity in conformally flat spacetimes
Roger Mayala, Rituparno Goswami, Sunil D. Maharaj
In this paper we consider conformally flat perturbations on the Friedmann Lemaitre Robertson Walker (FLRW) spacetime containing a general matter field. Working with the linearised…