@unpublished{BourniBurnsLangford:2026,
      title={Stability of the Shrinking Semi-Circle Under the Free Boundary Curve Shortening Flow}, 
      author={Theodora Bourni and Nathan Burns and Mat Langford},
      year={2026},
      eprint={2603.06949},
      archivePrefix={arXiv},
      primaryClass={math.DG},
      url={https://arxiv.org/abs/2603.06949}, 
}