The Poisson brackets of free null initial data for vacuum general relativity

26 Apr 2018 Reisenberger Michael P

A hypersurface composed of two null sheets, or "light fronts", swept out by the two congruences of future null normal geodesics emerging from a spacelike 2-disk can serve as a Cauchy surface for a region of spacetime. Already in the 1960s free (unconstrained) initial data for vacuum general relativity were found for hypersurfaces of this type... (read more)

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  • GENERAL RELATIVITY AND QUANTUM COSMOLOGY