A three dimensional ball quotient

@article{Freitag2011ATD,
  title={A three dimensional ball quotient},
  author={Eberhard Freitag and Riccardo Salvati Manni},
  journal={Mathematische Zeitschrift},
  year={2011},
  volume={276},
  pages={345-370}
}
In this paper we determine a very particular example of a Picard modular variety of general type. On its non-singular models there exist many holomorphic differential forms. In a forthcoming paper we will show that one can construct Calabi–Yau manifolds by considering quotients of this variety and resolving singularities. 
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