Supergravity S-Branes
Martin Kruczenski, Robert C. Myers, and Amanda W. Peet

TL;DR
This paper constructs supergravity solutions for space-like branes in string theory using solution-generating techniques, exploring their properties, bound states, and singularity structures.
Contribution
It introduces a method to generate SDp-brane solutions and their bound states from time-dependent Einstein equations, expanding understanding of space-like branes.
Findings
All SDp-brane solutions are obtained.
Bound states of SDp/SD(p-2) and SDp/SD(p-4) are constructed.
Initial analysis of near-brane regions and singularities.
Abstract
We construct supergravity solutions corresponding to space-like branes in string theory. Our approach is to apply the usual solution generating techniques to an appropriate time-dependent solution of the eleven dimensional vacuum Einstein equations. In this way all SDp-brane solutions are obtained, as well as the NS and M-theory space branes. Bound states of SDp/SD(p-2)- and SDp/SD(p-4)-branes are also constructed. Finally, we begin an investigation of the near-brane regions and singularity structure of these solutions.
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