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We develop a systematic approach to G_(2) holonomy manifolds with an SU(2) × SU(2) isometry using maximal eight-dimensional gauged supergravity to describe D6-branes wrapped on deformed three-spheres. A quite general metric ansatz that generaliz[...]texto impreso
Hernández Redondo, Rafael ; Sfetsos, Konstadinos ; Zoakos, Dimitrios | Int School Advanced Studies | 2006-03Supergravity backgrounds dual to a class of exactly marginal deformations of N = 4 supersymmetric Yang–Mills can be constructed through an SL(2, R) sequence of T-dualities and coordinate shifts. We apply this transformation to multicenter soluti[...]texto impreso
Compactifications of M-theory on manifolds with reduced holonomy arise as the local eleven-dimensional description of D6-branes wrapped on supersymmetric cycles in manifolds of lower dimension with a different holonomy group. Whenever the isomet[...]texto impreso
We explicitly construct a solution of eight-dimensional gauged supergravity representing D6-branes wrapped on six-cycles inside Calabi–Yau fourfolds. The solution preserves two supercharges and asymptotically is a cone with the coset space SU(2)[...]texto impreso
Hernández Redondo, Rafael ; Sfetsos, Konstadinos ; Zoakos, Dimitrios | Int School Advanced Studies | 2004-09We present a systematic method for constructing manifolds with Lorentzian holonomy group that are non-static supersymmetric vacua admitting covariantly constant light-like spinors. It is based on the metric of their Riemannian counterparts and t[...]
