Abstract:
In this thesis, we use the cosmographic approach to discuss Friedmann-
like space-time in the presence of torsion. For this, we explore equations
of motion that explain creation in an isotropic and homogeneous cosmic
backdrop with non-zero torsion. Here, we consider the energy density of
holographic dark energy model ρd = 3c2(z)M2
p L−2. We examine this DE
model with both constant and variable holographic length-scale in terms of
Hubble parameter to determine the best fit scale. The interaction between
dark sector components is taken to evaluate cosmographic parameters, like
Hubble, equation of state, deceleration, jerk, snap, lerk the statefinder pa-
rameters. We consider four c(z) parameterizations, which are Chevalier-
Polarski-Linder, Jassal-Bagla-Padmanabhan, Wetterich and Ma-Zhang for
both cases. We obtain consistent results for specific choices of constant
parameters in the underlying scenario.
