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Perturbations of Kantowski-Sachs Models with a Cosmological Constant
University of Szeged.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
University of Cape Town.
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2014 (English)In: Progress in Mathematical Relativity, Gravitation and Cosmology: Proceedings, Spanish Relativity Meeting ERE2012, University of Minho, Guimarães, Portugal, September 3-7, 2012 / [ed] Alfonso García-Parrado, Filipe C. Mena, Filipe Moura, Estelita Vaz, Heidelberg: Springer Berlin/Heidelberg, 2014, 289-293 p.Conference paper, Published paper (Refereed)
Abstract [en]

We investigate perturbations of Kantowski–Sachs models with a positive cosmological constant, using the gauge invariant 1 + 3 and 1 + 1 + 2 covariant splits of spacetime together with a harmonic decomposition. The perturbations are assumed to be vorticity-free and of perfect fluid type, but otherwise include general scalar, vector and tensor modes. In this case the set of equations can be reduced to six evolution equations for six harmonic coefficients.

Place, publisher, year, edition, pages
Heidelberg: Springer Berlin/Heidelberg, 2014. 289-293 p.
Series
Springer Proceedings in Mathematics and Statistics, ISSN 2194-1009 ; 60
National Category
Physical Sciences
Research subject
Theoretical Physics
Identifiers
URN: urn:nbn:se:umu:diva-93379DOI: 10.1007/978-3-642-40157-2_40ISBN: 978-3-642-40156-5 (print)OAI: oai:DiVA.org:umu-93379DiVA: diva2:748215
Conference
Spanish Relativity Meeting ERE2012, University of Minho, Guimarães, Portugal, September 3-7, 2012
Available from: 2014-09-18 Created: 2014-09-18 Last updated: 2015-05-20Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf