On Geodesic Flows and Their Deformations in Bertrand Space-times [PDF]
Prashant Kumar, Kaushik Bhattacharya, Tapobrata SarkarWe study the energy conditions and geodesic equations of Bertrand space-times. We show that these can be thought of as interesting physical space-times in certain regions of the parameter space where the weak and strong energy conditions hold. We further compute the ESR parameters for a class of such space-times and analyze them numerically.View original: http://arxiv.org/abs/1206.4249
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