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Discussion of almost complex structures on twistor spaces highlights metrics and connections on the base manifold.
The following problems related to almost complex structures on a twistor space are discussed: (1) when two almost complex structures defined by a morphism of the twistor space and two conformal metrics on the base manifold coincide; (2) when the Atiyah–Hitchin–Singer or Eells–Salamon almost complex structures on the twistor space defined by two metric connections on the base Riemannian manifold coincide.
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Davidov et al. (2025) studied this question.
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