The KT-BRST complex of a degenerate Lagrangian system

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Quantization of a Lagrangian field system essentially depends on its degeneracy and implies its BRST extension defined by sets of non-trivial Noether and higher-stage Noether identities. However, one meets a problem how to select trivial and non-trivial higher-stage Noether identities. We show that, under certain conditions, one can associate to a degenerate Lagrangian L the KT-BRST complex of fields, antifields and ghosts whose boundary and coboundary operators provide all non-trivial Noether identities and gauge symmetries of L. In this case, L can be extended to a proper solution of the master equation.
15 pages, accepted for publication in Lett. Math. Phys

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Mathematical Physics, Differential Geometry, 58A20; 58C50; 70S05; 70S20

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http://salesiana.dossiersoluciones.com/handle/123456789/195012

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math-ph/0702097
 http://arxiv.org/abs/math-ph/0702097
 Lett.Math.Phys.83:237-252,2008
 doi:10.1007/s11005-008-0226-y

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