2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185721Based on the rational R-matrix of the supersymmetric sl(2,1) matrix difference equations are solved by means of a generalization of the nested algebraic Bethe ansatz. These solutions are shown to be of highest-weight with respect to the underlying graded Lie algebra structure.10 pages, LaTex, references and acknowledgements added, spl(2,1) now called sl(2,1)High Energy Physics - Theorytext