@article{beyondobjectiveequivalenceconstraintinje,
  title = {Beyond Objective Equivalence: Constraint Injection for LLM-Based Optimization Modeling on Vehicle Routing Problems},
  author = {Xizi Luo and Changhong He and Dongdong Geng and Chenggong Shi and Yu Mei},
  year = {2026},
  eprint = {2606.04816},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.04816},
}