2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147110This paper works out the versions of the classical Giambelli and Pieri formulas in the context of quantum cohomology of a complex Grassmannian.20 pages (LaTeX). To appear in Advances in Mathematics. The quantum Pieri formula in the original version has been corrected (see also alg-geom/9705024), and the Title has been ``quantized''Algebraic Geometrytext