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Showing 2013 · gr-qcShow all
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gr-qc2013★ 20 cited
Accelerating anisotropic cosmologies in Brans-Dicke gravity coupled to a mass-varying vector field
Ozgur Akarsu, Tekin Dereli, Neslihan Oflaz
The field equations of Brans-Dicke gravity coupled to a mass-varying vector field are derived. Anisotropic cosmological solutions with a locally rotationally symmetric Bianchi type…
gr-qc2013★ 163 cited
Cosmology with hybrid expansion law: scalar field reconstruction of cosmic history and observational constraints
Ozgur Akarsu, Suresh Kumar, R. Myrzakulov +2
In this paper, we consider a simple form of expansion history of Universe referred to as the hybrid expansion law - a product of power-law and exponential type of functions. The an…
gr-qc2013★ 75 cited
Probing kinematics and fate of the Universe with linearly time-varying deceleration parameter
Ozgur Akarsu, Tekin Dereli, Suresh Kumar +1
The parametrizations and (Chevallier-Polarski-Linder parametrization) of deceleration parameter, which are linear in cosmic redshift and sca…