Curvature on the integers, II

In a prequel to this paper [1] a notion of curvature on the integers was introduced, based on a formal patching technique. In this paper, which is essentially independent of its prequel, we introduce another notion of curvature on the integers, based on “algebraization of Frobenius lifts by correspondences.” Our main results are vanishing/non-vanishing theorems for this new type of curvature in the case of “Chern connections” attached to classical groups.