2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/146802Topology and weights are closely related in weighted complex networks and this is reflected in their modular structure. We present a simple network model where the weights are generated dynamically and they shape the developing topology. By tuning a model parameter governing the importance of weights, the resulting networks undergo a gradual structural transition from a module free topology to one with communities. The model also reproduces many features of large social networks, including the "weak links" property.4 pages, 5 figuresPhysics and Societytext