31 citations · 52 across the 6 of their papers we have counts for
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gr-qc2020★ 31 cited
Barotropic fluid compatible parametrizations of dark energy
Dalibor Perkovic, Hrvoje Stefancic
Parametrizations of Equation of state parameter as a function of the scale factor or redshift are frequently used in dark energy modeling. The question investigated in this paper i…
gr-qc2019★ 14 cited
Dark sector unifications: dark matter-phantom energy, dark matter -- constant dark energy, dark matter-dark energy-dark matter
Dalibor Perkovic, Hrvoje Stefancic
The paper brings a novel approach to unification of dark matter and dark energy in terms of a cosmic fluid. A model is introduced in which the cosmic fluid speed of sound squared i…