@article{fastmultigridmethodsforminimizing,
  title = {Fast Multi-grid Methods for Minimizing Curvature Energy},
  author = {Zhenwei Zhang and Ke Chen and Ke Tang and Yuping Duan},
  year = {2022},
  eprint = {2204.07921},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2204.07921v3},
}