2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94538This paper aims to show that there exist non-symmetry constraints which yield integrable Hamiltonian systems through nonlinearization of spectral problems of soliton systems, like symmetry constraints. Taking the AKNS spectral problem as an illustrative example, a class of such non-symmetry constraints is introduced for the AKNS system, along with two-dimensional integrable Hamiltonian systems generated from the AKNS spectral problem.latex, 8 pages, to appear in Chaos, Solitons and FractalsExactly Solvable and Integrable Systemstext