2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54860We present the chiral truncation of the eleven dimensional M-algebra down to ten and six dimensions. In ten dimensions, we obtain a topological extension of the $(1,0)$ Poincaré superalgebra that includes super one-form and super five-form charges. Closed super three- and seven-forms associated with this algebra are constructed. In six dimensions, we obtain a topological extension of the $(2,0)$ and $(1,0)$ Poincaré superalgebras. The former includes a quintet of super one-form charges, and a decuplet of super three-form charges, while the latter includes a triplet of super three-form charges.Contribution to the Proceedings of the Trieste Summer School on High Energy Physics and Cosmology, June 10-July 26, 1996. Dedicated to the memory of Abdus Salam. 11 pages, requires sprocl.sty (World Scientific)High Energy Physics - Theorytext