A study of asymptotic behavior of homogeneous cosmological models with a varying cosmological constant in Einstein-Cartan theory: Cosmic no-hair theorem
type: Item
instance of: scholarly article
title: A study of asymptotic behavior of homogeneous cosmological models with a varying cosmological constant in Einstein-Cartan theory: Cosmic no-hair theorem
zbMATH Open document ID: 1032.83037
DOI: 10.1023/A:1024025119486
author: Subenoy Chakraborty
author: Sulagna Chakrabarti
published in: General Relativity and Gravitation
publication date: 2003-08-06T00:00:00Z
review text: This paper studies the no-hair conjecture for Bianchi cosmologies with a variable cosmological parameter \(\Lambda\) in the setting of Einstein-Cartan theory. It establishes that for Bianchi models (except for type IX), when \(\Lambda\) is assumed to be proportional to the square of the extrinsic curvature scalar (plus a constant), then a power law (resp.\ an exponential law) results for the expansion of the universe. For late times the universe isotropizes in both cases. Moreover, in both cases the global properties of the spacetime are very different from its local behavior, which resembles Einstein static in the first and de Sitter in the second case.
reviewed by: Michael Kunzinger
Mathematics Subject Classification ID: 83D05
Mathematics Subject Classification ID: 83F05
zbMATH DE Number: 1960182
zbMATH Keywords: homogeneous cosmological models
zbMATH Keywords: varying cosmological constant
zbMATH Keywords: Einstein-Cartan theory
zbMATH Keywords: cosmic no-hair theorem
MaRDI profile type: Publication
cites work: Inflationary universe: A possible solution to the horizon and flatness problems
cites work: A new type of isotropic cosmological models without singularity
cites work: Asymptotic behavior of homogeneous cosmological models in the presence of a positive cosmological constant
cites work: A study of angular size-redshift relation for models in which \(\Lambda\) decays as the energy density
cites work: Consequences on variable \(\Lambda\)-models from distant type Ia supernovae and compact radio sources
full work available at URL: a:1024025119486
OpenAlex ID: W1674320386
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description: scientific article; zbMATH DE number 1960182