Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 21, Issue 18, Pages 4335-4366Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/21/18/005
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We analyse the most general supersymmetric solutions of D = 11 supergravity consisting of a warped product of five-dimensional anti-de Sitter space with a six-dimensional Riemannian space M-6, with 4-form flux on M-6. We show that M-6 is partly specified by a one-parameter family of four-dimensional Kahler metrics. We find a large family of new explicit regular solutions where M-6 is a compact, complex manifold which is topologically a 2-sphere bundle over a four-dimensional base, where the latter is either (i) Kahier-Einstein with positive curvature, or (ii) a product of two constant-curvature Riemann surfaces. After dimensional reduction and T-duality, some solutions in the second class are related to a new family of Sasaki-Einstein spaces which includes T (1,1)/Z(2). Our general analysis also covers warped products of fivedimensional Minkowski space with a six-dimensional Riemannian space.
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