Hui Wei, Mu Ma, Shuguan Ji, “Multiple periodic solutions for an asymptotically linear wave equation with x-dependent coefficients”, Journal of Mathematical Physics, 62:11 (2021)
Thomas Kappeler, Riccardo Montalto, “On the Stability of Periodic Multi-Solitons of the KdV Equation”, Commun. Math. Phys., 385:3 (2021), 1871
Ningning Chang, Jiansheng Geng, Zhaowei Lou, “Bounded Non-response Solutions with Liouvillean Forced Frequencies for Nonlinear Wave Equations”, J Dyn Diff Equat, 33:4 (2021), 2009
Roberto Feola, Filippo Giuliani, Michela Procesi, “Reducible KAM Tori for the Degasperis–Procesi Equation”, Commun. Math. Phys., 377:3 (2020), 1681
Fenfen Wang, Hongyu Cheng, Jianguo Si, “Response Solution to Ill-Posed Boussinesq Equation with Quasi-Periodic Forcing of Liouvillean Frequency”, J Nonlinear Sci, 30:2 (2020), 657
Weichao Qian, Yong Li, Xue Yang, “Persistence of Lagrange invariant tori at tangent degeneracy”, Journal of Differential Equations, 268:9 (2020), 5078
Weichao Qian, Yong Li, Xue Yang, “Melnikov's Conditions in Matrices”, J Dyn Diff Equat, 32:4 (2020), 1779
Shidi Zhou, “Quasi-Periodic Solution of Nonlinear Beam Equation on ${\mathbb T}^d$ with Forced Frequencies”, Qual. Theory Dyn. Syst., 19:3 (2020)
Hongyu Cheng, Wen Si, Jianguo Si, “Whiskered Tori for Forced Beam Equations with Multi-dimensional Liouvillean Frequency”, J Dyn Diff Equat, 32:2 (2020), 705
Hongzi Cong, Chunyong Liu, Peizhen Wang, “A Nekhoroshev type theorem for the nonlinear wave equation”, Journal of Differential Equations, 269:4 (2020), 3853