2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79884In the context of the cohomological deformation theory, infinitesimal description of one-parametric families of Backlund transformations of special type including classical examples is given. It is shown that any family of such a kind evolves in the direction of a nonlocal symmetry shadow.Exactly Solvable and Integrable SystemsHigh Energy Physics - TheoryMathematical PhysicsDifferential Geometrytext