TL;DR
This paper examines the non-smooth curvature features in the evolution of the universe using Lorentzian warped products, focusing on phase transitions in the FRW cosmological model.
Contribution
It introduces a novel approach to model discontinuities in the universe's evolution via Lorentzian warped products, highlighting phase transitions.
Findings
Identification of non-smooth curvature features at phase transitions
Modeling of radiation-matter and matter-lambda discontinuities
Insights into the geometric structure of the universe during transitions
Abstract
We study the Friedmann-Robertson-Walker cosmological model to investigate non-smooth curvatures associated with multiple discontinuities involved in the evolution of the universe, by exploiting Lorentzian warped product scheme. Introducing double discontinuities occurred at the radiation-matter and matter-lambda phase transitions, we also discuss non-smooth features of the spatially flat Friedmann-Robertson-Walker universe.
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Taxonomy
TopicsHistory and Developments in Astronomy