共 50 条
- [21] Necessary and sufficient condition for the positivity of the Green function of a boundary value problem for a fourth-order equation on a graph Differential Equations, 2015, 51 : 303 - 317
- [24] Boundary-value Problems for a Class of Third-order Composite Type Equations MODERN ASPECTS OF THE THEORY OF PARTIAL DIFFERENTIAL EQUATIONS, 2011, 216 : 331 - 341
- [29] Positive Solutions for Boundary Value Problems of Second-Order Functional Dynamic Equations on Time Scales Advances in Difference Equations, 2009