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Anisotropic cosmological solutions in [Formula omitted] gravity

The European physical journal. C, Particles and fields, 2018-04, Vol.78 (4) [Peer Reviewed Journal]

COPYRIGHT 2018 Springer ;ISSN: 1434-6044 ;EISSN: 1434-6052 ;DOI: 10.1140/epjc/s10052-018-5778-0

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  • Title:
    Anisotropic cosmological solutions in [Formula omitted] gravity
  • Author: Müller, Daniel ; Ricciardone, Angelo ; Starobinsky, Alexei A ; Toporensky, Aleksey
  • Subjects: Anisotropy
  • Is Part Of: The European physical journal. C, Particles and fields, 2018-04, Vol.78 (4)
  • Description: In this paper we investigate the past evolution of an anisotropic Bianchi I universe in [Formula omitted] gravity. Using the dynamical system approach we show that there exists a new two-parameter set of solutions that includes both an isotropic "false radiation" solution and an anisotropic generalized Kasner solution, which is stable. We derive the analytic behavior of the shear from a specific property of f(R) gravity and the analytic asymptotic form of the Ricci scalar when approaching the initial singularity. Finally, we numerically check our results.
  • Publisher: Springer
  • Language: English
  • Identifier: ISSN: 1434-6044
    EISSN: 1434-6052
    DOI: 10.1140/epjc/s10052-018-5778-0
  • Source: Springer Open Access Journals
    ProQuest Central
    DOAJ Directory of Open Access Journals
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