Is Constant Mean Curvature a Good Choice of Time?
Jim Isenberg
University of Oregon
Friday, 23 May, 5 PM
Kidder 364, Oregon State University
While inertial time works in Minkowski spacetime, it fails in spacetimes with
non trivial gravitational fields. It would be useful to find an alternative,
geometrically and physically based, choice of times for cosmological
spacetimes.Many advocate a choice of time based on constant mean curvature
Cauchy hypersurfaces. We discuss results which indicate that this is a good
choice, and others which indicate problems.