2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54053We show that a chiral sector of a symplectic group manifold possesses a symmetry similar to, but somewhat weaker than the Lie--Poisson one.7 pages, latex, no figures A talk given at '94 Karpacz Winter School in Theoretical PhysicsHigh Energy Physics - TheoryNon--commutative Group Manifoldstext