Integrability of the Einstein-nonlinear SU(2) σ -model in a nontrivial topological sector
Abstract
The integrability of the Λ -Einstein-nonlinear SU(2) σ -model with nonvanishing cosmological charge is studied. We apply the method of singularity analysis of differential equations and we show that the equations for the gravitational field are integrable. The first few terms of the solution are presented.
- Publication:
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European Physical Journal C
- Pub Date:
- December 2017
- DOI:
- 10.1140/epjc/s10052-017-5477-2
- arXiv:
- arXiv:1708.01579
- Bibcode:
- 2017EPJC...77..909P
- Keywords:
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- High Energy Physics - Theory;
- Condensed Matter - Other Condensed Matter;
- General Relativity and Quantum Cosmology;
- Mathematical Physics
- E-Print:
- 6 pages, 2 figures, published at EPJC