2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185663We show how to systematically derive the complete set of the gauge transformations of different types of the gauge invariant models, which are the chiral Schwinger and CP$^1$ with Chern-Simons term, in the Lagrangian Formalism.15 pages, no figures, LaTex. to appear in Journal of Physics A: Mathematical and GeneralHigh Energy Physics - Theorytext