2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50954A (1 + d)-dimensional thick "brane world" model with varying Lambda-term is considered. The model is generalized to the case of a chain of Ricci-flat internal spaces when the matter source is an anisotropic perfect fluid. The "horizontal" part of potential is obtained in the Newtonian approximation. In the multitemporal case (with a Lambda-term) a set of equations for potentials is presented.11 pages, Latex, to be published in Grav. Cosmol. 7, 241-245 (2001)High Energy Physics - Theorytext