Periodic solutions of a piecewise linear beam equation damping and nonconstant load. An, Yukun — 2002 Electronic Journal of Differential Equations (EJDE) [electronic only]
Existence and multiplicity of positive solutions of a boundary-value problem for sixth-order ODE with three parameters. Zhang, Liyuan; An, Yukun — 2010 Boundary Value Problems [electronic only]
Ambrosetti-Prodi type results in a system of second and fourth-order ordinary differential equations. An, Yukun; Feng, Jing — 2008 Electronic Journal of Differential Equations (EJDE) [electronic only]
Existence of nontrivial solution for a nonlocal elliptic equation with nonlinear boundary condition. Wang, Fanglei; An, Yukun — 2009 Boundary Value Problems [electronic only]