Canonical formulation of newtonian dynamics
Classical particle in presence of magnetic field, hyperbolic Lobachevsky and spherical Riemann models.
Connections between symmetries and conservation laws.
Corrections to "L2 -characteristic classes of Maslov–Trofimov of hamiltonian systems on the Lie algebra of the upper triangular matrices" (Fund. Math. 156 (1998), 99–110)