[1] S. Aretakis, "General Relativiy", Columbia Lecture Notes available from
https://www.math.toronto.edu/aretakis/General%20Relativity-Aretakis.pdf
[2] B. O'Neill , "Semi-Riemannian Geometry", Academic Press
[3] R. Wald, "General Relativity", The University of Chicago Press
[4] H. Ringstroem, "The Cauchy Problem in General Relativity", EMS
[5] M. Dafermos and I. Rodnianski, "Lectures on black holes and linear waves."
In Evolution equations, Clay Mathematics Proceedings, Vol. 17, pages 97–205. Amer. Math. Soc. |