Electric S-brane solutions with a parallel charge density form on a Ricci-flat factor space

Summary: "We generalize the previously studied cosmological solutions in D-dimensional gravity with an antisymmetric (p+2)-form to the case when the spatial part of the metric is Ricci-flat rather than flat. These generalized solutions are characterized by a parallel self-dual or anti-self-dual charge density form Q of rank 2m and satisfy the condition Q^2>0. As with the previous flat-space case, these electric, S-brane solutions only exist when D=4m+1=5,9,13,dots and p=2m-1=1,3,5,dots. We further generalize these solutions by adding Ricci-flat factor-spaces which are not covered by branes."