Generalized classical BRST cohomology and reduction of Poisson manifolds |
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Authors: | Takashi Kimura |
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Institution: | (1) Department of Mathematics, 61200, University of Texas, 78712 Austin, Texas, USA;(2) Present address: Department of Mathematics, University of Pennsylvania, 19104 Philadelphia, PA, USA |
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Abstract: | In this paper, we formulate a generalization of the classical BRST construction which applies to the case of the reduction of a Poisson manifold by a submanifold. In the case of symplectic reduction, our procedure generalizes the usual classical BRST construction which only applies to symplectic reduction of a symplectic manifold by a coisotropic submanifold, i.e. the case of reducible first class constraints. In particular, our procedure yields a method to deal with second-class constraints. We construct the BRST complex and compute its cohomology. BRST cohomology vanishes for negative dimension and is isomorphic as a Poisson algebra to the algebra of smooth functions on the reduced Poisson manifold in zero dimension. We then show that in the general case of reduction of Poisson manifolds, BRST cohomology cannot be identified with the cohomology of vertical differential forms.Address after September 1992 |
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