2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/51238The (2+1) dimensional non-linear electrodynamics, the so called Pagels--Tomboulis electrodynamics, with the Chern--Simons term is considered. We obtain "generalized self--dual equation" and find the corresponding generalized massive Chern--Simons Lagrangian. Similar results for (2+1) massive dilaton electrodynamics have been obtained.9 pages, LaTeXHigh Energy Physics - Theorytext