Qualitative study of anisotropic Rastall cosmologies

We perform dynamical analysis of anisotropic Rastall cosmologies and, in particular Kantowski–Sachs, locally rotationally symmetric (LRS) Bianchi I and LRS Bianchi III cosmologies. Using dynamical system techniques, a qualitative analysis of cosmological equations yield physically interesting cases...

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Bibliographic Details
Published inIndian journal of physics Vol. 97; no. 2; pp. 631 - 641
Main Authors Singh, A., Pradhan, A.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.02.2023
Springer Nature B.V
Subjects
Astrophysics and Astroparticles
Original Paper
Physics
Physics and Astronomy
Qualitative analysis
Qualitative research
Isotropization
Bounce
Dynamical system
LRS
Anisotropy
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Summary:We perform dynamical analysis of anisotropic Rastall cosmologies and, in particular Kantowski–Sachs, locally rotationally symmetric (LRS) Bianchi I and LRS Bianchi III cosmologies. Using dynamical system techniques, a qualitative analysis of cosmological equations yield physically interesting cases which are in agreement with observations such as de Sitter, accelerating, stable attractors are isotropic. Features such as isotropization and cosmological bounce are discussed in detail.
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ISSN:0973-1458
0974-9845
DOI:10.1007/s12648-022-02406-z