@article{doesprincipalcomponentanalysispreserve,
  title = {Does Principal Component Analysis Preserve the Sparsity in Sparse Weak Factor Models?},
  author = {Jie Wei and Yonghui Zhang},
  year = {2023},
  eprint = {2305.05934},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2305.05934v2},
}