Eisenstein series are an essential ingredient in the spectral theory of automorphic forms and
an important tool in the theory of L-functions. They have also been exploited extensively by
number theorists for many arithmetic purposes. Bringing together contributions from areas which
do not usually interact with each other this volume introduces diverse users of Eisenstein
series to a variety of important applications. With this juxtaposition of perspectives the
reader obtains deeper insights into the arithmetic of Eisenstein series. The central theme of
the exposition focuses on the common structural properties of Eisenstein series occurring in
many related applications.
