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New futures for cosmological models.

Authors :
Fernández-Jambrina L
Lazkoz R
Source :
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences [Philos Trans A Math Phys Eng Sci] 2022 May 02; Vol. 380 (2222), pp. 20210333. Date of Electronic Publication: 2022 Mar 14.
Publication Year :
2022

Abstract

The discovery of accelerated expansion of the Universe opened up the possibility of new scenarios for the doom of our space-time, besides eternal expansion and a final contraction. In this paper, we review the chances that may await our universe. In particular, there are new possible singular fates (sudden singularities, big rip, etc.), but there also other evolutions that cannot be considered as singular. In addition to this, some of the singular fates are not strong enough in the sense that the space-time can be extended beyond the singularity. For deriving our results, we make use of generalized power and asymptotic expansions of the scale factor of the Universe. This article is part of the theme issue 'The future of mathematical cosmology, Volume 1'.

Details

Language :
English
ISSN :
1471-2962
Volume :
380
Issue :
2222
Database :
MEDLINE
Journal :
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Publication Type :
Academic Journal
Accession number :
35282694
Full Text :
https://doi.org/10.1098/rsta.2021.0333