2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100729The metric of Gibbons-Maeda black hole in the presence of a cosmological constant is constructed and verified. The dilaton potential with respect to the cosmological constant is obtained. It is found that the cosmological constant is coupled to the dilaton field.7 pages, submitted to CQGHigh Energy Physics - TheoryAstrophysicstext