2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/87806The spectrum of D-brane charges in the Type IIB string theory compactified on $AdS_{p+2}\times S^{8-p}$ is computed using the K-theory approach. The result differs from the corresponding result presented in the digest of Olsen and Szabo.5 pages, LATEX, exposition improvedGeneral Physicstext