2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56217We discuss aspects of the non-standard version of F-theory based on the arithmetic of torsion points on elliptic curves. We construct new F-theory vacua in 8 dimensions...Invited Poster Presentation at STRINGS'99, 7 pages, LaTexHigh Energy Physics - TheoryF-Theories with Reduced Monodromy and Effective String Theoriestext