Two-fluid cosmological models in a Bianchi type I space-times |
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| Authors: | Sanjay Oli |
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| Institution: | (1) Department of Mathematics, D.S.B. Campus, Kumaun University, Nainital, 263 002, India |
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| Abstract: | In this paper we present anisotropic, homogeneous two-fluid cosmological models in a Bianchi I space-time. These classes of
cosmological models picture two different scenarios of cosmic history; viz., when the radiation and matter content of the
universe are in interactive phase and another when the two are non-interacting. The universe is highly anisotropic in the
initial stages, however, anisotropy tapers out to insignificance in due course of cosmic evolution. In every model the anisotropy
of the space-time is determined by the density parameter Ω0 at the present epoch. For Ω0=1, the anisotropy is washed out before long. An interesting class of models, having an inflationary epoch in finite future,
is discovered.
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| Keywords: | Bianchi I cosmological models Two-fluid |
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