@article{deltamomentumakeyvaluebasedanisotropicmo,
  title = {DeltaMomentum: A Key-Value based Anisotropic Momentum Update via Delta Rule},
  author = {Euijin Hong and Guannan Qu},
  year = {2026},
  eprint = {2608.19491},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.19491},
}