(Pluri)harmonic morphisms and the Penrose-Ward transform
arXiv:1502.06420
Abstract
We show that, in quaternionic geometry, the Ward transform is a manifestation of the functoriality of the basic correspondence between the -quaternionic manifolds and their twistor spaces. We apply this fact, together with the Penrose transform, to obtain existence results for hypercomplex manifolds and for harmonic morphisms from hyper-Kaehler manifolds.
Preprint, I.M.A.R., Bucharest, 2015, 19 pages