@article{wellbegunhalfdonereinforcementlearningwi,
  title = {Well Begun, Half Done: Reinforcement Learning with Prefix Optimization for LLM Reasoning},
  author = {Yiliu Sun and Zicheng Zhao and Yang Wei and Yanfang Zhang and Chen Gong},
  year = {2025},
  eprint = {2512.15274},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2512.15274},
}