“…In this context, anisotropic discrete nonlinear problems involving p(k)-Laplacian operator seem to have attracted a great deal of attention due to its usefulness of modelling some more complicated phenomenon such us fluid dynamics and nonlinear elasticity. We refer the reader to [1,2,3,4,5,6,7,9,12,13,14,16,17,18,19,20,21,22,24] and references therein, where they could find the detailed background as well as many different approaches and techniques applied in the related area.…”