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Perturbations of Kantowski-Sachs models
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
University of Szeged.
University of Szeged.
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2015 (English)In: Proceedings of the Thirteenth Marcel Grossman Meeting on General Relativity / [ed] Robert T Jantzen, Kjell Rosquist, Remo Ruffini, Singapore: World Scientific, 2015, p. 2547-2549Conference paper, Published paper (Refereed)
Abstract [en]

Perturbations of Kantowski-Sachs models with a positive cosmological constant are considered in a harmonic decomposition, in the framework of gauge invariant 1+3 and 1+1+2covariant splits of spacetime. Scalar, vector and tensor modes are allowed, however they remain vorticity-free and of perfect fluid type. The dynamics is encompassed in six evolution equations for six harmonic coefficients.

Place, publisher, year, edition, pages
Singapore: World Scientific, 2015. p. 2547-2549
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Theoretical Physics
Identifiers
URN: urn:nbn:se:umu:diva-116120ISBN: 9789814612142 (print)OAI: oai:DiVA.org:umu-116120DiVA, id: diva2:901462
Conference
The Thirteenth Marcel Grossman Meeting on General Relativity, July 1 - 7 2012, Stockholm, Sweden
Available from: 2016-02-08 Created: 2016-02-08 Last updated: 2018-06-07Bibliographically approved

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Bradley, MichaelForsberg, Mats

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