Existence solution for class of p-laplacian equations

We study existence of positive solution of the equation ?? p u = ? u p?2 u + f x, u with zero Dirichlet boundary conditions in bounded domain ? ? ? n where ? denotes the plaplacian operator defined by ?? p z = div ?z p?2 ?z ; p, ? ? ? and p > 1.Our main result establishes the existence of weak solution.