EXISTENCE OF NONTRIVIAL SOLUTIONS OF A NONLINEAR BIHARMONIC EQUATION
Yinghua Jin, Q-Heung Choi, Xuechun Wang · Korean Journal of Mathematics · 2009
We consider the existence of solutions of a nonlinear bi- harmonic equation with Dirichlet boundary condition, ¢ 2 u+c¢u = f(x;u) in ›, where › is a bounded open set in R N with smooth boundary @›. We obtain two new results by linking theorem. Let us consider the problem: