The Geroch group in Einstein spaces

Abstract

Geroch's solution-generating method is extended to the case of Einstein spaces, which possess a Killing vector {{}and are thus asymptotically (locally) (anti-)de Sitter}. This includes the reduction to a three-dimensional coset space, the description of the dynamics in terms of a sigma-model and its transformation properties under the $SL(2,\mathbb{R})$ group, and the reconstruction of new four-dimensional Einstein spaces. The detailed analysis of the space of solutions is performed using the Hamilton--Jacobi method in the instance where the three-dimensional coset space is conformal to $\mathbb{R}\times {\mathcal{S}}_2$. The cosmological constant appears in this framework as a constant of motion and transforms under $SL(2,\mathbb{R})$.

16 pages. v2 journal version

References in corpus (2)

• Charging axisymmetric space-times with cosmological constant
• Integrability of the symmetry reduced bosonic dynamics and soliton generating transformations in the low energy heterotic string effective theory