This article presents some multiplicity results for a general class of nonlinear discrete problems with double-well taylor made p790 for sale potentials.Variational techniques are used to obtain the existence of saddle-point type critical points.In addition to simple lpc330v discrete boundary-value problems, partial difference equations as well as problems involving discrete $p$-Laplacian are considered.Also the boundedness of solutions is studied and possible applications, e.g.
in image processing, are discussed.