2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94398I propose a scheme of constructing classical integrable models in 3+1 discrete dimensions, based on a relaxed version of the problem of factorizing a matrix into the product of four matrices of a special form.LaTeX, 3 pagesExactly Solvable and Integrable SystemsAlgebraic Geometrytext