Generalization of the Extended Lagrangian Formalism on a Field Theory and Applications

@article{Deriglazov2011GeneralizationOT,
  title={Generalization of the Extended Lagrangian Formalism on a Field Theory and Applications},
  author={A. Deriglazov and B. Rizzuti},
  journal={Physical Review D},
  year={2011},
  volume={83},
  pages={125011}
}
  • A. Deriglazov, B. Rizzuti
  • Published 2011
  • Physics, Mathematics
  • Physical Review D
  • Formalism of extended Lagrangian represents a systematic procedure to look for the local symmetries of a given Lagrangian action. In this work, the formalism is discussed and applied to a field theory. We describe it in detail for a field theory with first-class constraints present in the Hamiltonian formulation. The method is illustrated on examples of electrodynamics, Yang-Mills field, and nonlinear sigma model. 
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