2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53784A complete list of all transitive symplectic manifolds of the Poincaré and Galilei group in 1+2 dimensions is given.LATEX, #15 pages, IFA-FT-392-1994, JanuaryHigh Energy Physics - TheoryHamiltonian Mechanics in 1+2 Dimensionstext