2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/67534This article deals with 3-forms on 6-dimensional manifodls, the first dimension where the classification of 3-forms is not trivial. There are three classes of multisymplectic 3-forms there. We study the class which is closely related to almost complex structures.Differential Geometry53C15, 58A10text