2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/11231In this paper, we propose an extension of the Smolin-model of a galactic disc in isolated, flocculent SC-type galaxies. This model supplies the necessary mechanism to suppress spatial inhomogeneities on short distance scales not present in the model proposed by Smolin.13 pages, 4 Figures in eps fromatAstrophysicsFormation of Spiral Structures in Galactic Discs from Reaction-Diffusion Networkstext