Chong-Qing Cheng

Residues of Destructed Resonance Torus

Min Zhou, Chong-Qing Cheng, 2021 .

Existence of KAM Tori in Degenerate Hamiltonian Systems

Yongzhong Sun, Chong-Qing Cheng, Yongzhong Sun, 1994 .

Existence of invariant tori in three-dimensional measure-preserving mappings

Chong-Qing Cheng, Y. Sun, Yi Sui Sun, 1989 .

Metamorphoses of phase portraits of vector field in the case of symmetry of order 4

Chong-Qing Cheng, Yi-Sui Sun, 1992 .