2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55710The principle of equivalence is translated into the language of the world-volume field theories that define matrix and string theories. This idea leads to explore possible matrix descriptions of M-theory compactifications. An interesting case is the relationship between D=6 N=1 U(M) SYM and Matrix Theory on K3.18 pages, no figures. A few clarifications. Minor changesHigh Energy Physics - Theorytext