2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149960This is my talk at ICM, Zurich 1994. It contains a short introduction, two basic examples and a refined version of the Mirror Conjecture formulated in terms of homological algebra.19 pages, AmsTeX, no figures. This is my talk at ICM, Zurich 1994Algebraic GeometryHigh Energy Physics - Theorytext