Lorentzian G-manifolds I: General theory of Lorentzian G-manifold.
Dmitri Alekseevsky University of Edingurgh
A.The orbit space M/G of a Lorentzian manifold M with an isometry group G
B. Structure of a Lorentzian G-manifold in a neighborhood of a closed orbit P
C. Lorentzian G-manifolds with semisimple group G.
D. Compact Lorentzian G-manifolds.