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We briefly discuss new models of an ‘affine’ theory of gravity in multidimensional space-times with symmetric connections. We use and generalize Einstein’s proposal to specify the space-time geometry ...
The conformal cosmological model presented by Mannheim predicts a negative value for the effective gravitational constant, Geff. It also involves a scalar field, S, which is treated classically.
We study cosmological dynamics and late-time evolution of an extended induced grav-ity braneworld scenario. In this scenario, curvature effects are taken into account via the Gauss-Bonnet term in the...
We show that Brans-Dicke (BD) theory in 5D may explain the present cosmic accelerated expansion without recurring to matter fields in 5D or dark energy in 4D. Without making any assumption on the natu...
We present results concerning the nature of the cosmological big bounce(BB) transition within the loop geometry underlying loop quantum cosmology (LQC). Our canonical quantization method is an alterna...
We study the metric $f(R)$ cosmology using Noether symmetry approach by utilizing the behavior of the corresponding Lagrangian under infinitesimal generators of the desired symmetry. The existence of ...

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