Let A be a thin set in Z n , and A N the intersection of A with the ball of diameter N centred at the origin. When n = 1 we have seen in §9.7 (as a consequence of Siegel’s theorem) that |A N | = O(N… Expand

We present two letters of J-P. Serre to Tate and to Kazhdan. The first indicates an approach to modular forms (modp) through quaternions. The second discusses the theory of representations of local… Expand