Abstract
The perturbation by a spherical rotating shell is investigated in a homogeneous and isotropic cosmological model of viscous fluid distribution to first order in angular velocity ω(r, t) of matter and the metric rotation function Ω(r, t) which is uniform and non-uniform the exact solutions for Ω(r, t) are obtained for all cosmological models. The physical properties of these solutions are discussed.
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Tarachand Singh, R.K., Ibotombi Singh, N. Slowly rotating cosmological viscous fluid Universe. Astrophys Space Sci 147, 235–243 (1988). https://doi.org/10.1007/BF00645668
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DOI: https://doi.org/10.1007/BF00645668