52 citations · 125 across the 21 of their papers we have counts for
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gr-qc2015★ 5 cited
The decoupling of scalar-modes from a linearly perturbed dust-filled Bianchi type I model
Bob Osano
We study linear perturbations about a dust filled Bianchi Type I model with the vorticity set to zero. In comparison to linear perturbations about FLRW models, modes of perturbatio…
gr-qc2015
Second Order perturbation Theory: A covariant approach involving a barotropic equation of state
Bob Osano
We present a covariant and gauge invariant formalism suited to the study of second-order effects associated with higher order tensor perturbations. The analytical method we have de…