Pointwise error estimates for a class of elliptic quasi-variational inequalities with nonlinear source terms

In this paper we derive L^∞-error estimates of a piecewise linear approximation method for a class of elliptic quasi-variational inequalities (QVIs) with nonlinear source terms. Our approach stands on a discrete L^∞-stability property with respect to the right-hand side in linear elliptic (QVIs).