Avy Soffer, Wei-Min Wang Anderson localization for time periodic random Schr\"odinger operators (217K, ps file) ABSTRACT. We prove that at large disorder, Anderson localization in $\Z^d$ is stable under localized time-periodic perturbations by proving that the associated quasi-energy operator has pure point spectrum. The formulation of this problem is motivated by questions of Anderson localization for non-linear Schr\"odinger equations.