2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/231309We apply a method of group averaging to states and operators appearing in (truncations of) the Spin(9) x SU(N) invariant matrix models. We find that there is an exact correspondence between the standard supersymmetric Hamiltonian and the Spin(9) average of a relatively simple lower-dimensional model.11 pagesHigh Energy Physics - TheoryMathematical Physicstext