Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-05-02
AnnalsPhys.322:1335-1372,2007
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
50 pages, 2 figures
Scientific paper
10.1016/j.aop.2006.07.005
We study the global structure of Lorentzian manifolds with partial sectional curvature bounds. In particular, we prove completeness theorems for homogeneous and isotropic cosmologies as well as static spherically symmetric spacetimes. The latter result is used to rigorously prove the absence of static spherically symmetric black holes in more than three dimensions. The proofs of these new results are preceded by a detailed exposition of the local aspects of sectional curvature bounds for Lorentzian manifolds, which extends and strengthens previous constructions.
Punzi Raffaele
Schuller Frederic P.
Wohlfarth Mattias N. R.
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