@article{distributedestimationforprincipal,
  title = {Distributed Estimation for Principal Component Analysis: an Enlarged Eigenspace Analysis},
  author = {Xi Chen and Jason D. Lee and He Li and Yun Yang},
  year = {2020},
  eprint = {2004.02336},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.02336v3},
}