2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60335This is an expository paper concerning topics on rational points of curves defined over finite fields based on a paper by St"ohr and Voloch.72 pages, LaTex2e, ps file available at http:// www.ime.unicamp.br/~ftorresAlgebraic Geometry14G, 11G, 05BThe approach of St"ohr-Voloch to the Hasse-Weil bound with applications to optimal curves and plane arcstext