Gauge gravitation theory in Riemann-Cartan space-time and the nonsingular Universe

TL;DR

This paper explores a gauge gravitation theory in Riemann-Cartan space-time, proposing conditions for nonsingular, accelerating cosmological solutions, supported by numerical analysis across different universe models, with implications for astrophysics.

Contribution

It introduces specific parameter constraints in gauge gravitation theory that yield nonsingular, accelerating universe solutions, extending the understanding of cosmological models in Riemann-Cartan space-time.

Findings

Numerical solutions show transition from gravitational compression to expansion.

Conditions for nonsingular, accelerating universe are derived.

Implications for astrophysics discussed.

Abstract

The gauge gravitation theory in the Riemann-Cartan space-time is investigated in order to solve the fundamental problems of the general relativity theory. The constraints for indefinite parameters of the theory under which solutions of isotropic cosmology describe a nonsingular accelerating Universe are given. Numerical solutions of cosmological equations near the limiting energy density by transition from gravitational compression to expansion in dependence on energy density in the case of flat, closed and open models are obtained. Some physical consequences of gauge gravitational theory in the Riemann-Cartan space-time in astrophysics are discussed.