Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-12-07
Class.Quant.Grav. 17 (2000) 2537-2546
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
10 pages, latex
Scientific paper
10.1088/0264-9381/17/13/307
We derive and analyze exact static solutions to the gravitating O(3) $\sigma$
model with cosmological constant in (2+1) dimensions. Both signs of the
gravitational and cosmological constants are considered. Our solutions include
geodesically complete spacetimes, and two classes of black holes.
Clement Gerard
Fabbri Alessandro
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