2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196202We evaluate partition functions of matrix models which are given by topologically twisted and dimensionally reduced actions of d=4 N=1 super Yang-Mills theories with classical (semi-)simple gauge groups, SO(2N), SO(2N+1) and USp(2N). The integrals reduce to those over the maximal tori by semi-classical approximation which is exact in reduced models. We carry out residue calculus by developing a diagrammatic method, in which the action of the Weyl groups and therefore counting of multiplicities are explained obviously.17 pages, 6 figures, typos corrected, more comments included, to appear in Nuclear Physics BHigh Energy Physics - Theorytext