2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185773We associate bicomplexes with several integrable models in such a way that conserved currents are obtained by a simple iterative construction. Gauge transformations and dressings are discussed in this framework and several examples are presented, including the nonlinear Schrodinger and sine-Gordon equations, and some discrete models.17 pages, LaTeX, uses amssymb.sty and diagrams.styExactly Solvable and Integrable SystemsHigh Energy Physics - TheoryMathematical Physicstext