We review some aspects of gauged WZW models. By choosing a nilpotent subgroup as gauge group, one is lead to three main applications: the construction of field theories with an extended conformal symmetry, the construction of the effective action of (extended) 2D gravities and the systematic construction of string theories with some extended gauge symmetry.
- Pub Date:
- November 1995
- High Energy Physics - Theory
- 11 pages, LaTeX, Contribution to the proceedings of the "Workshop on gauge theories, applied supersymmetry and quantum gravity", Leuven, july 1995