2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/205493We discuss the supersymmetric formulation of the nonhermitian $β= 2$ random matrix partition function with one bosonic flavor. This partition function is regularized by adding one conjugate boson and fermion each. A supersymmetric nonlinear $σ$-model for the resulting Goldstone degrees of freedom is obtained using symmetry arguments only. For a Gaussian probability distribution the same results are derived using superbosonization and the complex orthogonal polynomial method. The symmetry arguments apply to any model with the same symmetries and a mass gap, and demonstrate the universality of the nonlinear $σ$-model.17 pages, 0 figures. Section II extended. Version to appear in Nucl.Phys.BHigh Energy Physics - Theorytext