The Hawking energy on photon surfaces
General Relativity and Quantum Cosmology
2020-06-23 v2
Abstract
The Hawking energy has a monotonicity property under the inverse mean curvature flow on totally umbilic hypersurfaces with constant scalar curvature in Einstein spaces. It grows if the hypersurface is spacelike, and decreases if it is timelike. Timelike examples include Minkowski and de Sitter hyperboloids, and photon surfaces in Schwarzschild.
Cite
@article{arxiv.2001.08491,
title = {The Hawking energy on photon surfaces},
author = {Ingemar Bengtsson},
journal= {arXiv preprint arXiv:2001.08491},
year = {2020}
}
Comments
9 pages; improved by two referees