Frequent oscillatory behavior of delay partial difference equations with positive and negative coefficients. Xu, Li Hua; Yang, Jun — 2010 Advances in Difference Equations [electronic only]
Oscillation criteria for second-order superlinear neutral differential equations. Li, Tongxing; Han, Zhenlai; Zhang, Chenghui; Li, Hua — 2011 Abstract and Applied Analysis
On commuting properties of endomorphisms of formal A-modules over finite fields Hua-Chieh Li — 2005 Acta Arithmetica