Borcherds' method for Enriques surfaces

@article{Brandhorst2019BorcherdsMF,
  title={Borcherds' method for Enriques surfaces},
  author={Simon Brandhorst and I. Shimada},
  journal={arXiv: Algebraic Geometry},
  year={2019}
}
We classify all primitive embeddings of the lattice of numerical equivalence classes of divisors of an Enriques surface with the intersection form multiplied by 2 into an even unimodular hyperbolic lattice of rank 26. These embeddings have a property that facilitates the computation of the automorphism group of an Enriques surface by Borcherds' method. 
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