2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/27442We consider the scaling limits for a one-dimensional random growth model, the weakly asymmetric single step Solid-on-Solid process. We show that the fluctuation field, if considered in an appropriate (long) space-time scale, solves the Kardar-Parisi-Zhang equation.4 pages, RevTeX (twocolumn), no figuresCondensed Mattertext