@article{jointestimationofhighdimensionalspikedco,
  title = {Joint estimation of high-dimensional spiked covariance matrices via a partially shared subspace},
  author = {Changwon Yoon and Minwoo Kim and Sungkyu Jung and Jeongyoun Ahn},
  year = {2026},
  eprint = {2607.08123},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.08123},
}