Two restrictions in the theories that include $G(t)$ and $c(t)$ varying with time
Much work has been done taking into account the possibility that the gravitational {\it constant} $G$ may vary with cosmological time $t$ (or with the cosmological scale factor $a(t)$). The same may be said about the speed of light $c$. We present here two important remarks on these subject. These r...
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Zusammenfassung: | Much work has been done taking into account the possibility that the
gravitational {\it constant} $G$ may vary with cosmological time $t$ (or with
the cosmological scale factor $a(t)$). The same may be said about the speed of
light $c$. We present here two important remarks on these subject. These
remarks include $G(t)$ and $c(t)$ varying with time with the restriction $8 \pi
G / c^4 = \hbox{constant}$ |
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DOI: | 10.48550/arxiv.1501.07573 |