Bohlin-Arnold-Vassiliev's duality and conserved quantities
  Bohlin-Arnold-Vassiliev's duality transformation establishes a correspondence between motions in different central potentials. It offers a very direct way to construct the dynamical conserved quantities associated to the isotropic harmonic oscillator (Fradkin-Jauch-Hill tensor) and to the Kepler's problem (Laplace-Runge-Lenz vector). 
Yves Grandati (FCN, LPMC - Ea 3468), Alain Berard (FCN, LPMC - Ea   3468), Herve Mohrbach (FCN, LPMC - Ea 3468)