On multiple sign-changing solutions for some second-order integral boundary value problems. Zhang, Xingqiu; Sun, Jingxian — 2010 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
A theorem on many fixed points for nonlinear operator. Sun, Jingxian; Sun, Yong — 1990 Journal of Applied Mathematics and Stochastic Analysis
The iterative method of generalized u 0 -concave operators. Zhou, Yanqiu; Sun, Jingxian; Sun, Jie — 2011 Fixed Point Theory and Applications [electronic only]