... solutions of singular discrete p-Laplacianproblems via variational methods,” Advances in Difference Equations, no. 2, pp. 93–99, 2005.6 G. Bonanno and P. Candito, Nonlinear difference equations ... Neumann Problem Involving the p-LaplacianPasquale Candito1and Giuseppina D’Agu`ı21DIMET University of Reggio Calabria, Via Graziella (Feo Di Vito), 89100 Reggio Calabria, Italy2Department of Mathematics ... Corollary 3.1. Let X be a reflexive real Banach space, Φ : X →be a convex, coercive, and continuously Gˆateaux differentiable functional whose Gˆateaux derivative admits a continuous inverse on...