Higher-derivative scalar field theories as constrained second-order theories

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dc.creatorde Urries, F. J.
dc.creatorJulve, J.
dc.date1998-12-02
dc.date.accessioned2026-07-07T04:25:40Z
dc.date.available2026-07-07T04:25:40Z
dc.descriptionAs an alternative to the covariant Ostrogradski method, we show that higher-derivative relativistic Lagrangian field theories can be reduced to second differential-order by writing them directly as covariant two-derivative theories involving Lagrange multipliers and new fields. Notwithstanding the intrinsic non-covariance of the Dirac's procedure used to deal with the constraints, the Lorentz invariance is recovered at the end. We develope this new setting for a simple scalar model and then its applications to generalized electrodynamics and higher-derivative gravity are outlined. This method is better suited than Ostrogradski's for a generalization to 2n-derivative theories.
dc.description17 pages, Plain TeX
dc.identifierhttps://arxiv.org/abs/hep-th/9812020
dc.identifierhttp://arxiv.org/abs/hep-th/9812020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/55828
dc.subjectHigh Energy Physics - Theory
dc.titleHigher-derivative scalar field theories as constrained second-order theories
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