共 50 条
- [41] Positive Solutions for Fourth-Order Equations with a Sign-Changing Weight and Clamped Beam Boundary Conditions Bulletin of the Iranian Mathematical Society, 2022, 48 : 1945 - 1958
- [44] Multiple solutions for a fourth-order nonlinear elliptic problem BOUNDARY VALUE PROBLEMS, 2012,
- [49] Sign-Changing and Extremal Constant-Sign Solutions of Nonlinear Elliptic Neumann Boundary Value Problems BOUNDARY VALUE PROBLEMS, 2010,
- [50] Sign-Changing and Extremal Constant-Sign Solutions of Nonlinear Elliptic Neumann Boundary Value Problems Boundary Value Problems, 2010