2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/171727We review a performance of Fock space methods in calculating spectra of a range of supersymmetric models with gauge symmetry. Examples include: a) SU(2) Supersymmetric Yang Mills Quantum Mechanics in four euclidean dimensions, b) Quantum Mechanics of one fermion and one boson with infinite number of colours, and c) planar 1+1 dimensional Yang Mills theories with adjoint matter. Infrared divergencies of the latter theories with scalars are briefly discussed and a possible dynamical solution of the problem is suggested.8 pages, 3 figures, contribution to the HSQCD 2008 Conference, Gatchina, Russia, June 30 - July 4High Energy Physics - TheoryFrom large N quantum mechanics to planar field theorytext