@article{dion2asimplemethodtoshrinkmatrixinmuon,
  title = {Dion2: A Simple Method to Shrink Matrix in Muon},
  author = {Kwangjun Ahn and Noah Amsel and John Langford},
  year = {2025},
  eprint = {2512.16928},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2512.16928},
}