Black-hole Solution Without Curvature Singularity and Closed Timelike Curves

F.R. Klinkhamer
2014 Acta Physica Polonica B  
With a prescribed Coulomb-type energy-momentum tensor, an exact solution of the Einstein field equations over a nonsimply-connected manifold is presented. This spherically symmetric solution has neither curvature singularities nor closed timelike curves. It can be considered to be a regularization of the singular Reissner-Nordstrom solution over a simply-connected manifold.
doi:10.5506/aphyspolb.45.5 fatcat:35zo4zpalvfdrbsilvv4gshr6a