2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137539Let Gamma be a congruence subgroup of the Picard modular group of an imaginary number field k, and let D be the associated symmetric space. We describe a method to compute the integral cohomology of the locally symmetric space Gamma\D. The method is implemented for the case k=Q(i) and k=Q(sqrt(-3)), and the cohomology is computed for various Gamma.14 pages, 2 figures, 6 tablesNumber Theory11F75text