172 citations · 1.1k across the 34 of their papers we have counts for
Showing 2017 · gr-qcShow all
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gr-qc2017★ 13 cited
Calculating Observables in Inhomogeneous Cosmologies I: General Framework
Charles Hellaby, Anthony Walters
We lay out a general framework for calculating the variation of a set of cosmological observables, down the past null cone of an arbitrarily placed observer, in a given arbitrary i…
gr-qc2017★ 11 cited
Frame Rotation in the Szekeres Spacetimes
Charles Hellaby
The Szekeres metric is an inhomogeneous cosmological model without any symmetries. The standard Riemann-type coordinates can be transformed into spherical-type coordinates, but the…
gr-qc2017★ 19 cited
Symmetry and Equivalence in Szekeres Models
Ira Georg, Charles Hellaby
We solve for all Szekeres metrics that have a single Killing vector. For quasi hyperboloidal () metrics, we find that translational symmetries are possible, but only in metr…