Characterizations of BMO through commutators of bilinear singular   integral operators
  In this paper we characterize BMO in terms of the boundedness of commutators of various bilinear singular integral operators with pointwise multiplication. In particular, we study commutators of a wide class of bilinear operators of convolution type, including bilinear Calder\'on-Zygmund operators and the bilinear fractional integral operators. 
Lucas Chaffee
math.CA