Nonuniformity of Adiabatic Invariance for Nonlinear Oscillators. - Jishan Hu (SIAM J. Appl. Math., 1998)

Poincaré's lemma on the Heisenberg group. - Ovidiu Calin; Der-Chen Chang; Jishan Hu (Adv. Appl. Math., 2014)

UGMathBench: A Diverse and Dynamic Benchmark for Undergraduate-Level Mathematical Reasoning with Large Language Models. - Xin Xu; Jiaxin Zhang; Tianhao Chen; Zitong Chao; Jishan Hu; Can Yang (ICLR, 2025)

Double-Checker: Enhancing Reasoning of Slow-Thinking LLMs via Self-Critical Fine-Tuning. - Xin Xu; Tianlong Chen 001; Fan Zhang; Wanlong Liu; Pengxiang Li; Ajay Kumar Jaiswal; Yuchen Yan; Jishan Hu; Yang Wang 020; Hao Chen; Shiwei Liu 003; Shizhe Diao; et al. (CoRR, 2025)

GPAS: Accelerating Convergence of LLM Pretraining via Gradient-Preserving Activation Scaling. - Tianlong Chen 001; Xin Xu; Zijing Liu; Pengxiang Li; Xinyuan Song; Ajay Kumar Jaiswal; Fan Zhang; Jishan Hu; Yang Wang 020; Hao Chen; Shizhe Diao; Shiwei Liu 003; et al. (CoRR, 2025)