Regular inflationary cosmology and gauge theories of gravitation

TL;DR

This paper explores inflationary cosmological models within gauge theories of gravity, demonstrating that many such models exhibit a bouncing behavior, especially with ultrarelativistic matter at the bounce point.

Contribution

It introduces regular inflationary models in gauge theories of gravity, highlighting the prevalence of bouncing solutions across different spatial geometries.

Findings

Many inflationary models have a bouncing character.

Bouncing behavior occurs with ultrarelativistic matter at the bounce.

Models include flat, closed, and open universe types.

Abstract

Cosmological equations for homogeneous isotropic models filled by scalar fields and ultrarelativistic matter are investigated in the framework of gauge theories of gravity. Regular inflationary cosmological models of flat, closed and open type with dominating ultrarelativistic matter at a bounce are discussed. It is shown that essential part of inflationary cosmological models has bouncing character.