Half-flat structures on S^3xS^3 [PDF]
Thomas Bruun Madsen, Simon SalamonWe classify left-invariant half-flat SU(3)-structures on S^3xS^3, using the representation theory of SO(4) and matrix algebra. This leads to a systematic study of the associated cohomogeneity one Ricci-flat metrics with holonomy G_2 obtained on 7-manifolds with equidistant S^3xS^3 hypersurfaces. The generic case is analysed numerically.View original: http://arxiv.org/abs/1211.6845
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