BRS Cohomology of Zero Curvature Systems I. The Complete Ladder Case
M. Carvalho, L. C. Q. Vilar, C. A. G. Sasaki, S. P. Sorella
Abstract
We present here the zero curvature formulation for a wide class of field theory models. This formalism, which relies on the existence of an operator which decomposes the exterior space-time derivative as a BRS commutator, turns out to be particularly useful in order to solve the Wess-Zumino consistency condition. The examples of the topological theories and of the B-C string ghost system are considered in detail.
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