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astro-ph.CO2013
A quintessence scalar field with a constant-equation-of-state potential
Hoavo Hova
In this paper we study a quintessence scalar field in a potential exponentially decreasing with e-folding number, and show that the universe is currently undergoing an accelerated…
gr-qc2013
CDM and Power-Law Expansion in Lyra's Geometry
Hoavo Hova
We establish in a cosmological model based on Lyra's geometry a relationship between a displacement vector field , the Hubble parameter and the matter energy density $ ρ_{m}…