If F is a non-Archimedean local field, local class field theory can be
viewed as giving a canonical bijection between the characters of the
multiplicative group GL(1, F) of F and the characters of the Weil group
of F. If n is a positive integer, the n-dimensional analogue of a
character of the multiplicative group of F is an irreducible smooth
representation of the general linear group GL(n, F). The local Langlands
Conjecture for GL(n) postulates the existence of a canonical bijection
between such objects and n-dimensional representations of the Weil
group, generalizing class field theory.
This conjecture has now been proved for all F and n, but the arguments
are long and rely on many deep ideas and techniques. This book gives a
complete and self-contained proof of the Langlands conjecture in the
case n=2. It is aimed at graduate students and at researchers in related
fields. It presupposes no special knowledge beyond the beginnings of the
representation theory of finite groups and the structure theory of local
fields. It uses only local methods, with no appeal to harmonic analysis
on adele groups.