We establish various Lp estimates for the Schr\"odinger operator
−Δ+V on Riemannian manifolds satisfying the doubling property and a
Poincar\'e inequality, where Δ is the Laplace-Beltrami operator and V
belongs to a reverse H\"{o}lder class. At the end of this paper we apply our
result on Lie groups with polynomial growth.Comment: 38 page