2 papers
hep-th1995
States in the BRST cohomology for G/H WZNW models
Stephen Hwang, Henric Rhedin
WZNW models, especially gauged WZNW models, are important in the study of conformal field theories. Karabali and Schnitzer initiated the study of the BRST cohomology of a WZNW mode…
hep-th1992
Interaction and modular invariance of strings on curved manifolds
Stephen Hwang, Patrick Roberts
We review and present new results for a string moving on an group manifold. We discuss two classes of theories which use discrete representations. For these theories the…