2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50210In this talk I review some recent results concerning multi-instanton calculus in supersymmetric field theories. More in detail, I will show how these computations can be efficiently performed using the formalism of topological field theories.3 pages, uses ws-p10x7.cls, talk delivered at ICHEP 2000 in OsakaHigh Energy Physics - Theorytext