ON THE SYMMETRIES OF TOPOLOGICAL QUANTUM-FIELD THEORIES

We display properties of the general formalism which associates with a ny given gauge symmetry a topological action and a system of topologic al BRST and anti-BRST equations. We emphasize the distinction between the antighosts of the geometrical BRST equations and the antighosts oc curring in field theory. We propose a transmutation mechanism between these objects. We illustrate our general presentation by examples.