The n→0 limit of γgg(a) in QCD

We consider the n→0 limit of the DGLAP splitting function γgg(a) at all orders in the strong coupling constant, a, by analysing the leading order large Nf form of the associated d-dimensional critical exponent. We show that for unpolarized scattering the pole at n=0 which appears in successive orders in perturbation theory is absent in the resummed expression.