2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/213872The existence and nonexistence of global in time solutions is studied for a class of equations generalizing the chemotaxis model of Keller and Segel. These equations involve Lévy diffusion operators and general potential type nonlinear terms.Analysis of PDEs35Qxx; 35K55; 35B40text