K-111

Global interior boundary type: null versus spacelike pieces

open Interior / SCC

Statement

Determine whether generic near-Kerr collapse leads only to a null weak singularity near the Cauchy horizon or also to a spacelike terminal singular boundary.

Mathematical prerequisites

Global causal geometry; focusing; continuation/breakdown criteria; mixed null/spacelike boundary analysis.

Why it matters

This is the large-scale geometric version of the SCC problem inside rotating black holes.

Completion criteria

A complete answer must prove existence or absence of each boundary type for a generic class of near-Kerr data.

Implications if solved

Would reveal the global shape of the singular future boundary in rotating collapse.

Last updated: 2026-04-05 · Edit on GitHub →