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Full causal bulk viscous LRS Bianchi I with time varying constants

J. A. Belinchón
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Abstract

In this paper we study the evolution of a LRS Bianchi I Universe, filled with a bulk viscous cosmological fluid in the presence of time varying constants "but" taking into account the effects of a c-variable into the curvature tensor. We find that the only physical models are those which ``constants'' $G$ and $c$ are growing functions on time $t$, while the cosmological constant $Λ$ is a negative decreasing function. In such solutions the energy density obeys the ultrastiff matter equation of state i.e. $ω=1$.

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J. A. Belinchón. 2004-10-16. Full causal bulk viscous LRS Bianchi I with time varying constants. https://doi.org/10.1007/s10509-005-3424-4

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