17 citations · 36 across the 7 of their papers we have counts for
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math-ph2008★ 1 cited
On Conformal Vector Fields Parallel to The Observer Field
Alexander Dirmeier, Matthias Plaue, Mike Scherfner
We review a theorem by Hasse and Perlick establishing a result characterizing parallax-free cosmological models via three equivalent properties -- namely the existence of a redshif…
gr-qc2008★ 3 cited
On Spacetimes with Given Kinematical Invariants: Construction and Examples
M. Plaue, M. Scherfner, L. A. M. de Sousa
We present a useful method for the construction of cosmological models by solving the differential equations arising from calculating the kinematical invariants (shear, rotation, e…