Curvature blow up in Bianchi VIII and IX vacuum spacetimes
Curvature blow up in Bianchi VIII and IX vacuum spacetimes
The maximal globally hyperbolic development of non-Taub-NUT Bianchi IX vacuum initial data and of non-NUT Bianchi VIII vacuum initial data is C2 -inextendible. Furthermore, a curvature invariant is unbounded in the incomplete directions of inextendible causal geodesics.