Kinematics of discretely self-similar spherically symmetric spacetimes

Abstract

We summarize the consequences of the twin assumptions of (discrete) self-similarity and spherical symmetry for the global structure of a spacetime. All such spacetimes can be constructed from two building blocks, the "fan" and "splash". Each building block contains one radial null geodesic that is invariant under the self-similarity (self-similarity horizon).

RevTex, 11 pages, 7 eps figures