2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/107410Let X be a projective irreducible symplectic manifold and L a non trivial nef divisor on X. Assume that the nef dimension of L is strictly less than the dimension of X. We prove that L is semiample5 pagesAlgebraic Geometry14E30; 14J40On nef reductions of projective irreducible symplectic manifoldstext