2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50003Higher dimensional Majorana-Weyl spacetimes present space-time dualities which are induced by the Spin(8) triality automorphisms. This corresponds to a very fundamental property of the supersymmetry in higher dimensions, i.e. that any given theory can be formulated in different signatures all interconnected by the S_3 permutation group.8 pages, LaTex. Talk given at the Workshop on Super and Quantum Symmetries, Dubna, July 1999. Appeared in the ProceedingsHigh Energy Physics - Theorytext