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• Global Phase Portraits of Symmetrical Cubic Hamiltonian Systems with a Nilpotent Singular Point

  Huiyang Zhang, Aiyong Chen

  2024-04-10

  22335 2616 Pages:193-205 Open-access

• The First Integrals and Related Properties of a Class of Quintic Systems with a Uniform Isochronous Center

  Yuexin Yan, Zhengxin Zhou

  2024-04-10

  26993 2301 Pages:488-501 Open-access