2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53097An elementary introduction to the Gribov ambiguities and their consequences on the infrared behavior of Euclidean Yang-Mills theories is presented.Lectures given by S.P. Sorella at the 13th Jorge Andre Swieca Summer School on Particles and Fields, Campos de Jordao, Brazil, 9-22 January, 2005High Energy Physics - Theorytext