2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50754A new T-duality transformation is found in two-dimensional non-linear sigma models. This is a straightforward generalisation of Abelian and non-Abelian T-dualities.10 pages, Major changes. The duality transformations are cast in a simple formHigh Energy Physics - Theorytext