Einstein four-manifolds with skew torsion

@article{Ferreira2011EinsteinFW,
  title={Einstein four-manifolds with skew torsion},
  author={Ana Cristina Ferreira},
  journal={The Lancet},
  year={2011}
}
Abstract We develop a notion of Einstein manifolds with skew torsion on compact, orientable Riemannian manifolds of dimension four. We prove an analogue of the Hitchin–Thorpe inequality and study the case of equality. We use the link with self-duality to study the moduli space of 1-instantons on S 4 for a family of metrics defined by Bonneau. 
Product twistor spaces and Weyl geometry
Einstein manifolds with torsion and nonmetricity
2 8 N ov 2 01 8 Einstein manifolds with torsion and nonmetricity
Fermionic instantons

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