2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127741We study the characteristic foliation of a twisted Jacobi manifold. We show that a twisted Jacobi manifold is foliated into leaves that are, according to the parity of the dimension, endowed with a twisted contact or a twisted locally conformal symplectic structure.Submitted in Proceedings of the conference XV International Workshop on Geometry and PhysicsDifferential GeometrySymplectic Geometry53C12, 53D10, 53D17text