Hernández Redondo, Rafael2023-06-202023-06-202001-11-290370-269310.1016/S0370-2693(01)01219-9https://hdl.handle.net/20.500.14352/60222© 2001 Elsevier Science B.V. It is a pleasure to thank M. Blau, C. Gómez, K. Narain and S. Randjbar-Daemi for useful discussions. This research is partly supported by the EC contract no. HPRN-CT2000-00148.We obtain a supergravity solution arising when D6-branes are wrapped on coassociative four-cycles of constant curvature in seven manifolds of G_(2) holonomy. The solutions preserve two supercharges and thus represent supergravity duals of three dimensional Yang-Mills with N = 1 supersymmetry. When uplifted to eleven dimensions our solution describes M-theory on the background of an eight manifold with Spin(7) holonomy.engjournal articlehttp://dx.doi.org/10.1016/S0370-2693(01)01219-9http://www.sciencedirect.comhttps://arxiv.org/abs/hep-th/0106055v2open access53Física-Modelos matemáticos