2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/57698We investigate conservation laws of diffusion-convection equations to construct first-order potential systems corresponding to these equations. We do two iterations of the construction procedure, looking, in the second step, for the first-order conservation laws of the potential systems obtained in the first step.5 pagesMathematical PhysicsExactly Solvable and Integrable Systems35K57; 35A25text