2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153930The possible existence of the Anderson transition in 2D systems without interaction and spin-orbit effects (such as the usual Anderson model) becomes recently a subject of controversy in the literature. Comparative analysis of approaches based on generalized Lyapunov exponents is given, in order to resolve controversy.Latex, 10 pages, 1 figure includedDisordered Systems and Neural NetworksMesoscale and Nanoscale Physicstext