Although we have restricted ourselves to the case of a
vanishing cosmological constant this does not mean that other
cases have not been analyzed. Friedrich [52] has shown the existence of asymptotically simple de Sitter type
solutions of the Einstein-Maxwell-Yang-Mills equations and
stability of de Sitter space. More recently [54], with the general version of his conformal field equations, he
was able to demonstrate the existence of asymptotically simple
anti-de Sitter type solutions.
Finally, it should also be mentioned that recently some work has gone into generalizing the Bondi-Sachs calculations to poly-homogeneous space-times [30, 143, 144].
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Conformal Infinity
Jörg Frauendiener http://www.livingreviews.org/lrr-2000-4 © Max-Planck-Gesellschaft. ISSN 1433-8351 Problems/Comments to livrev@aei-potsdam.mpg.de |