@article{asingleloopbileveldeeplearningmethodforo,
  title = {A Single-Loop Bilevel Deep Learning Method for Optimal Control of Obstacle Problems},
  author = {Yongcun Song and Shangzhi Zeng and Jin Zhang and Lvgang Zhang},
  year = {2026},
  eprint = {2601.04120},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.04120},
}