  H. Garland constructed Eisenstein series on affine Kac-Moody groups over the
field of real numbers. He established the almost everywhere convergence of
these series, obtained a formula for their constant terms, and proved a
functional equation for the constant terms. In a subsequent paper, the
convergence of the Eisenstein series was obtained. In this paper, we define
Eisenstein series on affine Kac-Moody groups over global function fields using
an adelic approach. In the course of proving the convergence of these
Eisenstein series, we also calculate a formula for the constant terms and prove
their convergence and functional equations.
