@article{spectraledgedynamicsoftrainingtrajectori,
  title = {Spectral Edge Dynamics of Training Trajectories: Signal--Noise Geometry Across Scales},
  author = {Yongzhong Xu},
  year = {2026},
  eprint = {2603.15678},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.15678},
}