Generating solutions via sigma-models
Abstract
Description
We review recent development of solution-generating techniques for four and five-dimensional Einstein equations coupled to vector and scalar fields. This includes D=4 Einstein-Maxwell-dilaton-axion theory with multiple vector fields, D=5 Einstein-Maxwell gravity with the Chern-Simons term (minimal five-dimensional supergravity), and some other models which attracted attention in connection with black rings. The method is based on reduction to three-dimensional gravity coupled sigma-models with symmetric target spaces. Our recent results open a way to construct the general charged black rings in five-dimensional supergravity possibly coupled to vector multiplets.
An updated version of the talk given at ICGA8 and published in the Proceedings. 14 pages, ptptex
An updated version of the talk given at ICGA8 and published in the Proceedings. 14 pages, ptptex