Anomalies in the ERG Approach
  The antifield formalism adapted in the exact renormalization group is found to be useful for describing a system with some symmetry, especially the gauge symmetry. In the formalism, the vanishing of the quantum master operator implies the presence of a symmetry. The QM operator satisfies a simple algebraic relation that will be shown to be related to the Wess-Zumino condition for anomalies. We also explain how an anomaly contributes to the QM operator. 
Yuji Igarashi, Katsumi Itoh, Masanao Sato and Hidenori Sonoda
hep-th