On the strength of the Kerr singularity and cosmic censorship

TL;DR

This paper demonstrates that the Kerr singularity is generally a Tipler strong curvature singularity, challenging previous suggestions and impacting cosmic censorship theories.

Contribution

It provides evidence that nearly all null geodesics reaching the Kerr singularity terminate in a Tipler strong singularity, countering earlier claims.

Findings

Most null geodesics end in strong curvature singularity.

Results support cosmic censorship by constraining naked singularities.

Challenges previous ideas about the nature of Kerr singularities.

Abstract

It has been suggested by Israel that the Kerr singularity cannot be strong in the sense of Tipler, for it tends to cause repulsive effects. We show here that, contrary to that suggestion, nearly all null geodesics reaching this singularity do in fact terminate in Tipler's strong curvature singularity. Implications of this result are discussed in the context of an earlier cosmic censorship theorem which constraints the occurrence of Kerr-like naked singularities in generic collapse situations.