@article{combinatorialsparsepcabeyondthespikedide,
  title = {Combinatorial Sparse PCA Beyond the Spiked Identity Model},
  author = {Syamantak Kumar and Purnamrita Sarkar and Kevin Tian and Peiyuan Zhang},
  year = {2026},
  eprint = {2603.02607},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.02607},
}