2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179457We explicitly give the correspondence between spectra of heterotic string theory compactified on $T^2$ and string junctions in type IIB theory compactified on $S^2$.13 pages + 4 eps figures, PTPTeX, typographical errors correctedHigh Energy Physics - Theorytext