2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54288This is a brief review of the main properties of sphalerons in various theories with a Yang--Mills field. Talk given at the Heat Kernel Techniques and Quantum Gravity, Winnipeg, Canada, August 2-6, 1994.12 pages, TexHigh Energy Physics - Theorytext