Positive solutions of second order semipositone singular three-point boundary value problems. Guo, Yingxin — 2009 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
New results on the positive solutions of nonlinear second-order differential systems. Guo, Yingxin — 2009 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
Periodic solutions and exponential stability of a class of neural networks with time-varying delays. Guo, Yingxin; Xue, Mingzhi — 2009 Discrete Dynamics in Nature and Society
Oscillation criteria based on a new weighted function for linear matrix Hamiltonian systems. Guo, Yingxin; Wang, Junchang — 2011 Discrete Dynamics in Nature and Society