  By using $\k$-factorization, we derive resummation formulas for the
non-abelian $q\bar{q}$ contributions to both heavy flavour production by gluon
fusion, and to the next-to-leading BFKL kernel. By combining this result with
previous ones by Fadin et al. on the virtual terms, we also compute in closed
form the complete $q\bar{q}$ contribution to the gluon anomalous dimension in
the $Q_0$-scheme. We find that $q\bar{q}$ resummation effects are important for
heavy flavour production, but are instead small in the anomalous dimension
eigenvalues, because of a cancellation between abelian and non abelian
contributions.
