Singularity deep inside the spherical charged black hole core - art. no. 024011

We study analytically the spacelike singularity inside a spherically symmet ric, charged black hole coupled to a self-gravitating spherical massless sc alar field. We assume spatial homogeneity, and find a generic solution in t erms of a formal series expansion. This solution is tested against fully no nlinear and inhomogeneous numerical simulations. We find full compliance be tween our analytical solution and the pointwise behavior of the singularity in the numerical simulations. This is a strong scalar-curvature monotonic spacelike singularity, which connects to a weak null singularity at asympto tically late advanced time. [S0556-2821(98)05524-6].