THE EIGENVALUES AND EXISTENCE OF SOLUTIONS OF BVPS FOR FOURTH ORDER DIFFERENCE EQUATIONS

摘要

This paper investigates (lie existence of the eigenvalue pair of linear boundary value problems for fourth order dilference equations. By employing the upper and lower solution method, we establish the existence of solutions for nonlinear boundary value problems of fourth order difference equations under a noniesonauce condition involving a Iwo-parajneler eigonvalue problems.