Isochronous cosmologies
type: Item
instance of: scholarly article
title: Isochronous cosmologies
zbMATH Open document ID: 1316.83036
DOI: 10.1142/S0219887814500546
author: Fabio Briscese
author: Francesco Calogero
published in: International Journal of Geometric Methods in Modern Physics
publication date: 2014-10-29T00:00:00Z
full work available at URL: https://arxiv.org/abs/1402.0704
Mathematics Subject Classification ID: 83F05
Mathematics Subject Classification ID: 83D05
Mathematics Subject Classification ID: 83C75
Mathematics Subject Classification ID: 83C05
Mathematics Subject Classification ID: 83C10
Mathematics Subject Classification ID: 70H40
zbMATH DE Number: 6362159
zbMATH Keywords: cosmology
zbMATH Keywords: isochronous systems
zbMATH Keywords: general relativity
MaRDI profile type: Publication
arXiv ID: 1402.0704
cites work: General technique to produce isochronous Hamiltonians
cites work: Physical Foundations of Cosmology
cites work: DYNAMICS OF DARK ENERGY
cites work: Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
cites work: Periodic cosmological evolutions of equation of state for dark energy
cites work: An Example of a New Type of Cosmological Solutions of Einstein's Field Equations of Gravitation
review text: This paper defines a new type of cosmology, an isochronous cosmology, in analogy with non-relativistic, isochronous many-body problems. For simplicity only homogeneous and isotropic metrics are considered. The models are cyclic and they are termed isochronous since the duration of the cycles does not depend on the initial conditions. The models are locally Friedmann-Robertson-Walker, but not globally, since the time reparameterization is not a diffeomorphism in this case. An interesting property of these cosmologies is the fact that they can be geodesically complete and hence singularity free, whether they are physically realistic is controversial as the authors note.
reviewed by: Deborah Konkowski
description: scientific article; zbMATH DE number 6362159