Closed description of arbitrariness in resolving quantum master equation
  In the most general case of the Delta exact operator valued generators constructed of an arbitrary Fermion operator, we present a closed solution for the transformed master action in terms of the original master action in the closed form of the corresponding path integral. We show in detail how that path integral reduces to the known result in the case of being the Delta exact generators constructed of an arbitrary Fermion function. 
Igor A. Batalin, Peter M. Lavrov
hep-th