%0 Journal Article
%T Time (in)dependence in general relativity
%A S. Deser
%A J. Franklin
%J Physics
%D 2006
%I arXiv
%R 10.1119/1.2426351
%X We clarify the conditions for Birkhoff's theorem, that is, time-independence in general relativity. We work primarily at the linearized level where guidance from electrodynamics is particularly useful. As a bonus, we also derive the equivalence principle. The basic time-independent solutions due to Schwarzschild and Kerr provide concrete illustrations of the theorem. Only familiarity with Maxwell's equations and tensor analysis is required.
%U http://arxiv.org/abs/gr-qc/0607020v2