2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/135105We discuss hypermultiplets admitting degenerate discrete vacua and BPS domain walls interpolating them. This talk is based on the original papers, hep-th/0307274, hep-th/0211103 and hep-th/0302028.8 pages, no figures, Talks given at the 3rd International Symposium on Quantum Theory and Symmetries (QTS3), September 10-14, 2003, Cincinnati, and at the Workshop on Branes and Generalized Dynamics, October 20-24, 2003, ArgonneHigh Energy Physics - Theorytext