@article{cheaporthogonalconstraintsinneural,
  title = {Cheap Orthogonal Constraints in Neural Networks: A Simple Parametrization of the Orthogonal and Unitary Group},
  author = {Mario Lezcano-Casado and David Martínez-Rubio},
  year = {2019},
  eprint = {1901.08428},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1901.08428v3},
}