Oscillating phases in Bianchi type IX anisotropic universes are obtained as linearized solutions of Einstein-Cartan theory of gravity.Instead of making use of Weyssenhoff spinning fluids we addopt axionic torsion matter where the torsion tensor is totally skew-symmetric as in Kalb-Rammond type theories.Spin-torsion,metric and matter density oscillate at different phases. An upper bound oscillat...

We study the dynamical effects in the scale factors due to the scalar φ-field at the early stages of a supposedly anisotropic Universe expansion in connection with the problem of the initial singularity in the scalar-tensor cosmology of Jordan-Brans-Dicke. This is done by considering the behaviour of the general analytical solutions for the homogeneous model of Bianchi type VII in the vacuum ca...

We study past-directed extendibility of Friedmann-Lema\^{i}tre-Robertson-Walker (FLRW) and Bianchi type I spacetimes with a scale factor vanishing in the past. give criteria for determining whether boundary incomplete geodesics is parallelly propagated curvature singularity, which cannot necessarily be read off from scalar invariants. It clarified that, FLRW spacetime to avoid reduces Milne uni...

According to standard cosmology, the universe is homogeneous and isotropic at large scales. However, some anisotropies can be observed local scale in through various ways. Here, we have studied Bianchi Type I model by customizing factors understand anisotropic nature of universe. We considered two cases with slight modifications different directions generalized metric equation, compared results...

Quantum theory of a test field on quantum cosmological spacetime may be viewed as the an emergent classical background. In such case, resulting dressed metric for propagation is function fluctuations original geometry. When backreaction negligible, massive modes can experience anisotropic Bianchi type I The propagating quantum-gravity-induced then unveil interesting phenomenological consequence...

Considering the theory of induced gravity coupled to matter fields, taking the φ6 interaction potential model we evaluate the one-loop effective potential in a (3+1)dimensional Bianchi type-I spacetime. It is proved that the φ6 theory can be regularised in (3+1)dimensional curved spacetime. We evaluate the finite temperature effective potential and study the temperature dependence of phase tran...