@misc{ye2026dualitydeepmartingaleoptimalswitching,
      title={Duality and DeepMartingale for High-Dimensional Optimal Switching: Computable Upper Bounds and Approximation-Expressivity Guarantees},
      author={Junyan Ye and Hoi Ying Wong},
      year={2026},
      eprint={2604.08080},
      archivePrefix={arXiv},
      primaryClass={math.OC},
      url={https://arxiv.org/abs/2604.08080},
}