Two-Dimensional Adelic Analysis and Cuspidal Automorphic Representations of GL(2)

Abstract

Two-dimensional adelic objects were introduced by I. Fesenko in his study of the Hasse zeta function associated to a regular model \(\mathcal{E}\) of the elliptic curve E. The Hasse–Weil L-function L(E, s) of E appears in the denominator of the Hasse zeta function of \(\mathcal{E}\). The two-dimensional adelic analysis predicts that the integrand h of the boundary term of the two-dimensional zeta integral attached to \(\mathcal{E}\) is mean-periodic. The mean-periodicity of h implies the meromorphic continuation and the functional equation of L(E, s). On the other hand, if E is modular, several nice analytic properties of L(E, s), in particular the analytic continuation and the functional equation, are obtained by the theory of the cuspidal automorphic representation of GL(2) over the ordinary ring of adele (one dimensional adelic object). In this chapter, we try to relate in analytic way the theory of two-dimensional adelic object to the theory of cuspidal automorphic representation of GL(2) over the one-dimensional adelic object, under the assumption that E is modular. In the first approximation, they are dual each other.