2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/105965We report on some recent investigations of the structure of the four dimensional gauged supergravity Lagrangian which emerges from flux and Scherk-Schwarz compactifications in higher dimensions. Special attention is given to the gauge structure of M-theory compactified on a seven torus with 4-form and geometrical (spin connection) fluxes turned on. A class of vacua, with flat space-time and described by ``no-scale'' supergravity models, is analyzed.14 pages, LaTeX file, imprecise statement correctedHigh Energy Physics - TheorySpontaneously broken supergravity: Old and new factstext