2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52662We investigate a non-trivial extension of the $D-$dimensional Poincaré algebra. Matrix representations are obtained. The bosonic multiplets contain antisymmetric tensor fields. It turns out that this symmetry acts in a natural geometric way on these $p-$forms. Some field theoretical aspects of this symmetry are studied and invariant Lagrangians are explicitly given.LaTeX, 13 pages, contribution to the XI-th International Conference Symmetry Methods in Physics, Prague, June 21-24, 2004, presented by M. Rausch de TraubenbergHigh Energy Physics - TheoryMathematical Physicstext