2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47441This contribution reviews the latest results of the perturbative calculations of heavy-Higgs amplitudes. A comparison of perturbative results with nonperturbative lattice calculations is made, and the theoretical uncertainties of the lower and upper bound on the Standard Model Higgs mass are presented.9 pages; to appear in the Proceedings of the 35th Course of the International School of Subnuclear Physics: ``Highlights: 50 Years Later'', Erice, Italy, Aug. 26 - Sept. 4, 1997High Energy Physics - Phenomenologytext