The permanence in a single species nonautonomous system with delays and feedback control. Feng, Xiaomei; Zhang, Fengqin — 2010 Discrete Dynamics in Nature and Society
Resonance and nonresonance periodic value problems of first-order differential systems. Zhang, Fengqin; Yan, Jurang — 2010 Discrete Dynamics in Nature and Society
Monotone iterative method for differential equations with piecewise constant arguments. Zhang, Fengqin; Zhao, Aimin; Yan, Yurang — 2000 Portugaliae Mathematica
Persistence of an SEIR model with immigration dependent on the prevalence of infection. Wang, Wenjuan; Xin, Jingqi; Zhang, Fengqin — 2010 Discrete Dynamics in Nature and Society
The permanence and extinction of a discrete predator-prey system with time delay and feedback controls. Li, Qiuying; Liu, Hanwu; Zhang, Fengqin — 2010 Advances in Difference Equations [electronic only]
Global behaviors of a chemostat model with delayed nutrient recycling and periodically pulsed input. Wang, Kai; Teng, Zhidong; Zhang, Fengqin — 2010 Discrete Dynamics in Nature and Society
A differential equation model of HIV infection of CD4 + T-cells with delay. Yang, Junyuan; Wang, Xiaoyan; Zhang, Fengqin — 2008 Discrete Dynamics in Nature and Society