2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/180557We briefly review the properties of the N=2 U(N) gauge model with/without matters. On the vacua, N=2 supersymmetry and the gauge symmetry are spontaneously broken to N=1 and a product gauge group, respectively. The masses of the supermultiplets appearing on the N=1 vacua are given. We also discuss the relation to the matrix model.4 pages, contributions to 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY06), Irvine, California, USA, 12-17 June 2006, and MSJ-IHES Joint Workshop on Noncommutativity, Bures-sur-Yvette, France, 15-18 November 2006High Energy Physics - Theorytext