2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10074We present here the results about the determination of the Luminosity Function (LF) for elliptical galaxies in the core of fairly rich clusters as a function of redshift and try to compare with the known LF of close, better studied clusters of galaxies. We then outline the first use of a new method of selecting member elliptical galaxies using an unsupervised Artificial Neural Network (ANN) working on a purely photometric set of data.uuencoded compressed postscript file, 4 pages with 2 figures, published in 'Fresh View of Ellipticals', Puebla congress proceedings, March 1995Astrophysicstext