2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/67516We describe recent work on the twisted Yangians Y(g,h) which arise as boundary remnants of Yangians Y(g) in 1+1D integrable field theories, bringing out the special role played by the requirement that (g,h) be a symmetric pair.7 pages. Talk presented at RAQIS, Annecy, March 2003Quantum AlgebraHigh Energy Physics - Theorytext