2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66922We describe the asymptotic behaviour of solutions of unviscid Burgers equation on the circle with time-periodic forcing. These solutions converge to periodic states, but the period of these limit states may be greater than the period of the forcing. We obtain as a corollary a new result on the flow of the associated Hamiltonian system.Analysis of PDEsDynamical Systems35F25;37E40text