To cover a permutohedron

@misc{kong2025coverpermutohedron,
      title={To cover a permutohedron},
      author={Bochao Kong and Ji Zeng},
      year={2025},
      eprint={2509.13877},
      archivePrefix={arXiv},
      primaryClass={math.CO},
      url={https://arxiv.org/abs/2509.13877},
}