9 citations · 9 across the 2 of their papers we have counts for
4 papers · 1 filter
On small tension p-branes
Jonas Bjornsson, Stephen Hwang
This paper deals with p-branes with small but non-zero tension. We prove the existence of canonical transformations, within a perturbation theory, that link specific geometries of…
On the unitarity of gauged non-compact WZNW strings
Jonas Bjornsson, Stephen Hwang
In this paper we investigate the unitarity of gauged non-compact WZNW strings i.e. string theories formulated as G/H' WZNW models, where G is a non-compact group. These models repr…
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…
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…