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• Difference Equation for $N$-Body Type Problem

  Leshun Xu, Yuecai Han, Baifeng Liu

  2021-05-28

  32238 2632 Pages:411-417

• A KAM-Type Theorem for Generalized Hamiltonian Systems

  Baifeng Liu, Wenzhuang Zhu, Leshun Xu

  2021-05-20

  31104 2915 Pages:37-52