2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123070We prove that a generic differential operator of type DN is irreducible, regular, (anti)self-adjoint, and has quasiunipotent local monodromies. We prove that the defining matrix of a DN operator can be recovered from the expression of the operator as a polynomial in t and d/dt.Algebraic GeometryClassical Analysis and ODEstext