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Energy of Bardeen Model Using Approximate Symmetry Method

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arxiv 1012.0087 v1 pith:SMMPO5SF submitted 2010-12-01 gr-qc

Energy of Bardeen Model Using Approximate Symmetry Method

classification gr-qc
keywords approximateenergybardeenequationsfactormodelsymmetrythird-order
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In this paper, we investigate the energy problem in general relativity using approximate Lie symmetry methods for differential equations. This procedure is applied to Bardeen model (the regular black hole solution). Here we are forced to evaluate the third-order approximate symmetries of the orbital and geodesic equations. It is shown that energy must be re-scaled by some factor in the third-order approximation. We discuss the insights of this re-scaling factor.

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