The perturbation of the Seiberg-Witten equations revisited
  We introduce a new class of perturbations of the Seiberg-Witten equations. Our perturbations offer flexibility in the way the Seiberg-Witten invariants are constructed and also shed a new light to LeBrun's curvature inequalities. 
Mikio Furuta and Shinichiroh Matsuo
math.DG math.GT