Causal structure and degenerate phase boundaries
General Relativity and Quantum Cosmology
2009-10-31 v1
Abstract
Timelike and null hypersurfaces in the degenerate space-times in the Ashtekar theory are defined in the light of the degenerate causal structure proposed by Matschull. Using the new definition of null hypersufaces, the conjecture that the "phase boundary" separating the degenerate space-time region from the non-degenerate one in Ashtekar's gravity is always null is proved under certain circumstances.
Cite
@article{arxiv.gr-qc/9904075,
title = {Causal structure and degenerate phase boundaries},
author = {Yongge Ma and Canbin Liang},
journal= {arXiv preprint arXiv:gr-qc/9904075},
year = {2009}
}
Comments
13 pages, Revtex