2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/221304In this study, taking into considering lifting theory, we shall obtain both almost complex and paracomplex structures on the tangent bun- dle, based on almost Lorentzian r-contact and r-paracontact manifold.Dynamical SystemsDifferential Geometry53D15, 53B30, 28A51text