@article{theshapeofadditiongeometricstructuresofa,
  title = {The Shape of Addition: Geometric Structures of Arithmetic in Large Language Models},
  author = {Liuyuan Wen and Xun Zhu and Lihao Huang and Wenbin Li and Yang Gao},
  year = {2026},
  eprint = {2606.03645},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.03645},
}