2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/225862The compactification of type IIA superstring on n-dimensional Calabi-Yau manifolds is discussed. In particular, a conjecture is given for type IIA extremal p-dimensional black brane attractors corresponding to Ads_{p+2}\times S^{8-2n-p} horizon geometries.9 pages, Latex. Minor changes. Version to be publishedHigh Energy Physics - Theorytext