文摘
In this paper, a fourth-order nonlinear p-Laplacian difference equation is considered. Using the critical point theory, we establish various sets of sufficient conditions of the nonexistence and existence of solutions for Neumann boundary value problem and give some new results. The existing results are generalized and significantly complemented. Keywords Nonexistence and existence Neumann boundary value problem p-Laplacian Mountain Pass Lemma Discrete variational theory