2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52199In this talk, we discuss four-dimensional N=1 affine $ADE$ quiver gauge models using the geometric engineering method in M-theory on $G_2$ manifolds with K3 fibrations.10 pages, LaTex, Contribution to the Proceedings of the Workshop on Quantum Field Theory, Geometry and Non Perturbative Physics, Rabat, July 28th-29th, 2003High Energy Physics - Theorytext