The quaternionic/hypercomplex-correspondence

12 Apr 2019  ·  Cortés Vicente, Hasegawa Kazuyuki ·

Given a quaternionic manifold $M$ with a certain $\mathrm{U}(1)$-symmetry, we construct a hypercomplex manifold $M'$ of the same dimension. This construction generalizes the quaternionic K\"ahler/hyper-K\"ahler-correspondence... As an example of this construction, we obtain a compact homogeneous hypercomplex manifold which does not admit any hyper-K\"ahler structure. Therefore our construction is a proper generalization of the quaternionic K\"ahler/hyper-K\"ahler-correspondence. read more

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Differential Geometry