2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55303We review the problems associated with Matrix compactifications on T^6.Latex, 7 pages; talk given at ``31st Internat. Symp. Ahrenshoop Theory of Elementary Particles'' Buckow, Sept. 2-6, 97High Energy Physics - Theorytext