1304.2305 (F. R. Klinkhamer)

Black-hole solution without curvature singularity    [PDF]

F. R. Klinkhamer

An exact solution of the vacuum Einstein field equations over a nonsimply-connected manifold is presented. This solution is spherically symmetric and has no curvature singularity. It can be considered to be a regularization of the singular Schwarzschild-Kruskal-Szekeres solution over a simply-connected manifold. Spherically symmetric collapse of matter in R^4 may result in this nonsingular black-hole solution, if quantum-gravity effects allow for topology change near the center.

View original: http://arxiv.org/abs/1304.2305