2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43993Possible mechanisms for gluon confinement in Yang-Mills theory in covariant gauges are discussed briefly. Implications for the infrared behavior of the Green's functions are outlined. Results for the gluon and Faddeev-Popov ghost propagators from Dyson-Schwinger studies and lattice calculations are presented. The importance of the ghost-gluon vertex in these studies is discussed. Numerical results for a non-perturbatively constructed ghost-gluon vertex in four and three space-time dimensions are presented.10 pages, 6 figures, to appear in the proceedings of the International School of Subnuclear Physics, 29 August - 07 September, 2004, Erice, ItalyHigh Energy Physics - PhenomenologyHigh Energy Physics - LatticeNuclear Theorytext