6 citations · 12 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2019★ 6 cited
Matter Growth in Imperfect Fluid Cosmology
Winfried Zimdahl, Hermano Velten, William C. Algoner
Extensions of Einstein's General Relativity (GR) can formally be given a GR structure in which additional geometric degrees of freedom are mapped on an effective energy-momentum te…
astro-ph.CO2017
Matter growth in extended CDM cosmology
W. Zimdahl, H. E. S. Velten, W. C. Algoner
On the basis of a previously established scalar-tensor extension of the CDM model we develop an effective fluid approach for the matter growth function. This extended CDM (he…
gr-qc2016★ 6 cited
Scalar-tensor extension of the CDM model
W. C. Algoner, H. E. S. Velten, W. Zimdahl
We construct a cosmological scalar-tensor-theory model in which the Brans-Dicke type scalar enters the effective (Jordan-frame) Hubble rate as a simple modification of the Hubb…