BooksirmaCollected Volumepp. 477–496

Twistor and reflector spaces of almost para-quaternionic manifolds

  • Stefan Ivanov

    University of Sofia, Bulgaria
  • Ivan Minchev

    University of Sofia, Bulgaria
  • Simeon Zamkovoy

    University of Sofia, Bulgaria
Twistor and reflector spaces of almost para-quaternionic manifolds cover
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Abstract

We investigate the integrability of almost complex structures on the twistor space of an almost para-quaternionic manifold as well as the integrability of natural almost paracomplex structures on the reflector space of an almost para-quaternionic manifold constructed with the help of an arbitrary para-quaternionic connection. We show that if there exists an integrable structure then it is independent on the para-quaternionic connection. In dimension four, we express the ant-self-duality condition in terms of the Riemannian Ricci forms with respect to the associated para-quaternionic structure.