activity
20162022
most citedDouble power series method for approximating cosmological perturbations

1 citations · 2 across the 5 of their papers we have counts for

collaborators
Showing gr-qcShow all

2 papers · 1 filter

gr-qc2017

Gravitational waves in a flat radiation-matter universe including anisotropic stress

Andrew J. Wren, Jorge L. Fuentes, Karim A. Malik

We present novel analytical solutions for linear-order gravitational waves or tensor perturbations in a flat Friedmann-Robertson-Walker universe containing two perfect fluids, radi…

gr-qc2016★ 1 cited

Double power series method for approximating cosmological perturbations

Andrew J. Wren, Karim A. Malik

We introduce a double power series method for finding approximate analytical solutions for systems of differential equations commonly found in cosmological perturbation theory. The…