Causal structure and degenerate phase boundaries

Details Causal structure and degenerate phase boundaries Causal structure and degenerate phase boundaries

1999-04-29

arxiv.org/abs/gr-qc/9904075v1

Phys.Rev. D59 (1999) 044008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, Revtex

Scientific paper

10.1103/PhysRevD.59.044008

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.

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