Moduli of coassociative submanifolds and semi-flat G2-manifolds
We show that the moduli space of deformations of a compact coassociative submanifold C has a natural local embedding as a submanifold of H2(C,R). We show that a G2-manifold with a T4-action of isometries such that the orbits are coassociative tori is locally equivalent to a minimal 3-manifold in R3,3 with positive induced metric where R3,3~=H2(T4,R). By studying minimal surfaces in quadrics we show how to construct minimal 3-manifold cones in R3,3 and hence G2-metrics from a real form of the...[Show more]
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|Source:||Journal of Geometry and Physics|
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