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 ...