Achieving Olympia-Level Geometry Large Language Model Agent via Complexity Boosting Reinforcement Learning - Zhao, Haiteng; Shen, Junhao; Zhang, Yiming; Gao, Songyang; Liu, Kuikun; Ma, Tianyou; Zheng, Fan; Lin, Dahua; Zhang, Wenwei; Chen, Kai (International Conference on Learning Representations, 2026)