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Статья

Blow-ups of locally conformally Kahler manifolds

International Mathematics Research Notices. 2013. No. 12. P. 2809-2821.
Ornea L., Verbitsky M., Vuletescu V.

A locally conformally Khler (LCK) manifold is a complex manifold which admits a covering endowed with a Kähler metric with respect to which the covering group acts through homotheties. We show that the blow-up of a compact LCK manifold along a complex submanifold admits an LCK structure if and only if this submanifold is globally conformally Kähler. We also prove that a twistor space (of a compact four-manifold, a quaternion-Kähler manifold, or a Riemannian manifold) cannot admit an LCK metric, unless it is Kähler.