KacMoody algebra and nonlinear sigma model
Abstract
We investigate the nonlinear sigma model over an arbitrary homogeneous space. Then it is shown that the sigma model realizes the KacMoody algebra as current algebra only if the homogeneous space is restricted to the group manifold.
 Publication:

Physics Letters B
 Pub Date:
 December 1985
 DOI:
 10.1016/03702693(85)903351
 Bibcode:
 1985PhLB..164..329O