2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174424We study supersymmetric extensions of classical kinematical algebras from the point of view of contraction theory. It is shown that contracting the supersymmetric extension of the anti-de Sitter algebra leads to a hierarchy similar in structure to the classical Bacry-Lévy-Leblond classificationTalk presented at Group27, yerevan, Armenia, August 2008High Energy Physics - TheoryMathematical Physicstext