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Full Causal Bulk Viscous LRS Bianchi I With Time Varying Constants
Authors:J.?A.?Belinchón  author-information"  >  author-information__contact u-icon-before"  >  mailto:abelcal@ciccp.es"   title="  abelcal@ciccp.es"   itemprop="  email"   data-track="  click"   data-track-action="  Email author"   data-track-label="  "  >Email author
Affiliation:1.Dept. Física ETS Arquitectura UPM,Espa?a,Spain
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.
Keywords:time varying constants  LRS Bianchi I cosmologies  bulk viscous fluids
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