2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52013We review some facts about various T-dualities and sigma models on group manifolds, with particular emphasis on supersymmetry. We point out some of the problems in reconciling Poisson-Lie duality with the bi-hermitean geometry of N=2 supersymmetric sigma models. A couple of examples of supersymmetric models admitting Poisson-Lie duality are included.21 pages, Latex, v2, References addedHigh Energy Physics - Theorytext