Existence of CMC Cauchy surfaces and spacetime splitting
Existence of CMC Cauchy surfaces and spacetime splitting
In this paper, we review results on the existence (and nonexistence) of constant mean curvature spacelike hypersurfaces in the cosmological setting, and discuss the connection to the spacetime splittng problem.It is a pleasure to dedicate this paper to Robert Bartnik, who has made fundamental contributions to this area.