Regular S-brane backgrounds
作者： G Tasinato , I Zavala , C.P Burgess , F Quevedo
DOI: 10.1088/1126-6708/2004/04/038
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摘要: We construct time-dependent S-brane solutions to the supergravity field equations in various dimensions which (unlike most such geometries) do not contain curvature singularities. The configurations we consider are less symmetric than earlier solutions, with our simplest solution being obtained by a simple analytical continuation of Kerr geometry. discuss detail global structure and properties this background. then generalize it higher include more complicated configurations—like non vanishing scalars antisymmetric tensor gauge potentials—by usual artifice applying duality symmetries.
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