Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-10-29
J.Math.Phys.50:112501,2009
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
43 pages, no figures, version as published in JMP, small changes, updated references
Scientific paper
10.1063/1.3239509
We analyse conformal gauge, or isotropic, singularities in cosmological
models in general relativity. Using the calculus of tractors, we find
conditions in terms of tractor curvature for a local extension of the conformal
structure through a cosmological singularity and prove a local extension
theorem.
Lübbe Christian
Tod Paul
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