Xinyu Guan, Jianguo Si, Wen Si, “Parabolic invariant tori in quasi-periodically forced skew-product maps”, Journal of Differential Equations, 277, 2021, 234
A. S. Gonchenko, S. V. Gonchenko, D. Turaev, “Doubling of invariant curves and chaos in three-dimensional diffeomorphisms”, Chaos: An Interdisciplinary Journal of Nonlinear Science, 31, no. 11, 2021, 113130
Tingting Zhang, Àngel Jorba, Jianguo Si, “Weakly hyperbolic invariant tori for two dimensional quasiperiodically forced maps in a degenerate case”, DCDS-A, 36, no. 11, 2016, 6599
Jing Wang, “Lower dimensional invariant tori for quasiperiodically forced circle diffeomorphisms”, Journal of Differential Equations, 253, no. 5, 2012, 1489