Bianchi type I cosmology in N=2, D=5 supergravity - art. no. 104017

The dynamics and evolution of Bianchi type I space-times are considered in the framework of the four-dimensional truncation of a reduced theory obtain ed from N=2, D=5 supergravity. The general solution of the gravitational fi eld equations can be represented in an exact parametric form. All solutions have a singular behavior at the initial or final moment, except when the s pace-time geometry reduces to the isotropic hat case. Generically the obtai ned cosmological models describe an anisotropic, expanding or collapsing, s ingular universe with a noninflationary evolution for all times.