Перегляд за автором "Vergara, J.D."

Сортувати за: Порядок: Результатів:

  • An Alternative Canonical Approach to the Ghost Problem in a Complexified Extension of the Pais-Uhlenbeck Oscillator 
    Déctor, A.; Morales-Técotl, H.A.; Urrutia, L.F.; Vergara, J.D. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    Our purpose in this paper is to analyze the Pais-Uhlenbeck (PU) oscillator using complex canonical transformations. We show that starting from a Lagrangian approach we obtain a transformation that makes the extended PU ...
  • Space-Time Diffeomorphisms in Noncommutative Gauge Theories 
    Rosenbaum, M.; Vergara, J.D.; Juarez, L.R. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    In previous work [Rosenbaum M. et al., J. Phys. A: Math. Theor. 40 (2007), 10367–10382] we have shown how for canonical parametrized field theories, where space-time is placed on the same footing as the other fields in the ...