2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54973Various gauge invariant but non-Yang-Mills dynamical models are discussed: Précis of Chern-Simons theory in (2+1)-dimensions and reduction to (1+1)-dimensional B-F theories; gauge theories for (1+1)-dimensional gravity-matter interactions; parity and gauge invariant mass term in (2+1)-dimensions.25 pages, RevTeXHigh Energy Physics - TheoryGeneral Relativity and Quantum Cosmologytext