7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

Quasi-Newtonian and anti-Newtonian universes in f(R)-gravity

11 Jul 2014, 10:20
D Les 204

D Les 204

Oral Presentation Track D1 - Astrophysics Space


Dr Amare Abebe (North-West University)

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We investigate a class of shear-free and irrotational perfect fluid cosmological models in the context of modified (higher-order) gravitational theories. In particular, we generalize the potential and acceleration terms of the quasi-Newtonian formulation of General Relativity. We also show the existence of ``anti-Newtonian” cosmological models based on a consistency analysis of Einstein’s field equations applied to f(R)-gravity models.

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Primary author

Dr Amare Abebe (North-West University)

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