A. Zhuk, GENERALIZED DE SITTER SOLUTION IN MULTIDIMENSIONAL COSMOLOGY WITH STATIC INTERNAL SPACES, Astronomische Nachrichten, 316(5), 1995, pp. 269-274
A multi-dimensional cosmological model with space-time consisting of n
(n greater than or equal to 2) Einstein spaces M(i) is investigated in
the presence of a cosmological constant n and a homogeneous minimally
coupled free scalar field. A generalized de Sitter solution was found
for Lambda > 0 and a Ricci-Aat external space for the case of static
internal spaces with fine tuning of parameters.