2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/29629We discuss the features of nonequilibrium growth problems, their scaling description and their differences from equilibrium problems. The emphasis is on the Kardar-Parisi-Zhang equation and the renormalization group point of view. Some of the recent developments along these lines are mentioned.9 pages, revtex, A brief overview as published in Current Science 77, 394 (1999)Statistical Mechanicstext