2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/132744When a region is conquered by people speaking another language, we assume within the Schulze model that at each iteration each person with probability s shifts to the conquering language. The time needed for the conquering language to become dominating is about 2/s for directed Barabasi-Albert networks, but diverges on the square lattice for decreasing s at some critical value sc4 pages including figures; not submitted to a journalPhysics and Societytext