Perturbations of Kantowski-Sachs Models with a Cosmological Constant

Z. Keresztes, M. Forsberg, M. Bradley, P. K.S. Dunsby, L. Á Gergely

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProgress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012
PublisherSpringer New York LLC
Pages289-293
Number of pages5
ISBN (Print)9783642401565
DOIs
Publication statusPublished - Jan 1 2014
EventSpanish Relativity Meeting, ERE 2012 - Guimaraes, Portugal
Duration: Sep 3 2012Sep 7 2012

Publication series

NameSpringer Proceedings in Mathematics and Statistics
Volume60
ISSN (Print)2194-1009
ISSN (Electronic)2194-1017

Other

OtherSpanish Relativity Meeting, ERE 2012
CountryPortugal
CityGuimaraes
Period9/3/129/7/12

ASJC Scopus subject areas

  • Mathematics(all)

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    Keresztes, Z., Forsberg, M., Bradley, M., Dunsby, P. K. S., & Gergely, L. Á. (2014). Perturbations of Kantowski-Sachs Models with a Cosmological Constant. In Progress in Mathematical Relativity, Gravitation and Cosmology - Proceedings of the Spanish Relativity Meeting ERE2012 (pp. 289-293). (Springer Proceedings in Mathematics and Statistics; Vol. 60). Springer New York LLC. https://doi.org/10.1007/978-3-642-40157-2_40