Kantowski-Sachs cosmology in scalar-torsion theory
arXiv:2302.09608 · doi:10.1140/epjc/s10052-023-11342-z
Abstract
In the context of scalar-torsion theory we investigate the evolution of the cosmological anisotropies for a Kantowski-Sachs background geometry. We study the phase-space of the gravitational field equations by determining the admitted stationary points and study their stability properties. For the potential function of the non-minimally coupled scalar field we assume the exponential and the power-law functions. Finally, we make use of Poincare variables in order to investigate the existence of stationary points at the infinity regime of the dynamics.
arXiv comment25 pages; 6 figures; to appear in Eur. Phys. J. C
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