2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50496We consider five-dimensional domain-wall solutions which arise from a sphere reduction in M-theory or string theory and have the higher-dimensional interpretation as the near-horizon region of p-branes in constant, background B fields. We analyze the fluctuation spectrum of linearized gravity and find that there is a massive state which is localized and plays the role of the four-dimensional graviton.12 pages, 6 figures, references addedHigh Energy Physics - Theorytext