2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104618Some recent results in the study of four dimensional supergravity flux compactifications are reviewed, discussing in particular the role of torsion on the compactification manifold in generating gauge charges for the effective four dimensional theories.Contribution to the 43rd International School of Subnuclear Physics, Erice, Sicily, Italy, Aug. 2005High Energy Physics - Theorytext