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- W3048236418 abstract "We extend the model of a 5D Brans–Dicke gravity theory reduced to 4D through the presence of a hypersurface-orthogonal space-like killing vector field in the underlying 5D spacetime by including a varying speed of light. The resulting model is characterized by the presence of two scalar fields. We focus on late-time power law solutions which emerge in general when scalar fields couple to spacetime curvature and do not contradict the SNIa astrophysical data. Analytic solutions in 4-dimensions are derived and late-time accelerated expansion was found. The universe is dominated by dark energy, free from phantom field and is characterized by a decaying energy matter density, decaying scalar fields, and a decreasing celerity of light. The model is confronted with astrophysical observations and is found to fit these data." @default.
- W3048236418 created "2020-08-13" @default.
- W3048236418 creator A5058521549 @default.
- W3048236418 date "2020-08-06" @default.
- W3048236418 modified "2023-09-25" @default.
- W3048236418 title "Five-dimensional Brans–Dicke compactified universe dominated by a varying speed of light" @default.
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- W3048236418 doi "https://doi.org/10.1142/s0217732320502521" @default.
- W3048236418 hasPublicationYear "2020" @default.
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