Oscillatory periodic solutions for two differential-difference equations arising in applications. Cheng, Rong — 2011 Abstract and Applied Analysis
Variational approaches for the existence of multiple periodic solutions of differential delay equations. Cheng, Rong; Hu, Jianhua — 2010 Abstract and Applied Analysis
On invariant tori of nearly integrable Hamiltonian systems with quasiperiodic perturbation. Zhang, Dongfeng; Cheng, Rong — 2010 Fixed Point Theory and Applications [electronic only]