Author/Authors :
François Delduc، نويسنده , , Nicola Maggiore، نويسنده , , Olivier Piguet، نويسنده , , Sylvain Wolf، نويسنده ,
Abstract :
The cohomology of the BRS operator corresponding to a group of rigid symmetries is studied in a space of local field functionals subjected to a condition of gauge invariance. We propose a procedure based on a filtration operator counting the degree in the infinitesimal parameters of the rigid symmetry transformations. An application to Wittenʹs topological Yang-Mills theory is given.