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Showing 2015 · gr-qcShow all
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gr-qc2015★ 51 cited
Cosmological perturbations in mimetic Horndeski gravity
Frederico Arroja, Nicola Bartolo, Purnendu Karmakar +1
We study linear scalar perturbations around a flat FLRW background in mimetic Horndeski gravity. In the absence of matter, we show that the Newtonian potential satisfies a second-o…
gr-qc2015★ 10 cited
Relativistic Positioning System in Perturbed Space-time
Uroš Kostić, Martin Horvat, Andreja Gomboc
We present a variant of a Global Navigation Satellite System called a Relativistic Positioning System (RPS), which is based on emission coordinates. We modelled the RPS dynamics in…