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A Geometrical Characterization of Reissner -Nordström Spacetime and Its Retractions

A. E. El-Ahmady, A. Al-Rdade


Our aim in the present article is to introduce and study a new type of metric, namely Reissner – Nordström space time metric. New types of geodesics in Reissner – Nordström space time are presented. The retraction of Reissner – Nordström space time is defined and discussed. The deformation retracts of Reissner – Nordström space time into itself and onto geodesics are deduced. Also, the isometric and topological folding in each case and the relation between the deformation retracts after and before folding have been obtained. New types of homotopy maps are described.


Reissner – Nordström space time metric, geodesics, retraction, folding

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