2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6460We present two different projects. The first one is related to the development of a semi-analytic model to follow the formation, the evolution and chemical enrichment of cluster galaxies in a hierarchical dark matter model. The second project concerns the comparison between high resolution N-body simulations of clusters of galaxies with the EDisCS observational dataset.2 pages, 2 figures, to appear in "Multiwavelength Cosmology", Mykonos Conference ProceedingsAstrophysicstext