Abstract
The BRST–antiBRST invariant path integral formulation of classical mechanics of Gozzi et al. is generalized to pseudomechanics. Projections to physical propagators by BRST–antiBRST invariant boundary conditions are considered. The formulation is also viewed from recent group theoretical results within BRST–antiBRST invariant theories. A natural bracket expressed in terms of BRST and antiBRST charges in the extended formulation is shown to be equal to the Poisson bracket. Several remarks on the operator formulation are made.
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