Abstract
We review the general properties of target spaces of hypermultiplets, which are quaternionic-like manifolds, and discuss the relations between these manifolds and their symmetry generators. We explicitly construct a one-to-one map between conformal hypercomplex manifolds (i.e. those that have a closed homothetic Killing vector) and quaternionic manifolds of one quaternionic dimension less. An important role is played by `ξ-transformations', relating complex structures on conformal hypercomplex manifolds and connections on quaternionic manifolds. In this map, the subclass of conformal hyper-Kähler manifolds is mapped to quaternionic-Kähler manifolds. We relate the curvatures of the corresponding manifolds and furthermore map the symmetries of these manifolds to each other.
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Communicated by G.W. Gibbons
An erratum to this article is available at http://dx.doi.org/10.1007/s00220-007-0266-7.
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Bergshoeff, E., Cucu, S., Wit, T. et al. The Map Between Conformal Hypercomplex/ Hyper-Kähler and Quaternionic(-Kähler) Geometry. Commun. Math. Phys. 262, 411–457 (2006). https://doi.org/10.1007/s00220-005-1475-6
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DOI: https://doi.org/10.1007/s00220-005-1475-6