  The inclusive gluon jet function is evaluated at two-loop accuracy. This
function is relevant for resummations of large perturbative logarithms in
collider processes involving low-mass gluon jets. The jet function corresponds
to the imaginary part of the gluon propagator in light-cone gauge, which is
adopted for the calculation. In addition to the leading jet function, the
power-suppressed two-gluon jet functions are given and their renormalization is
discussed.
