Uniqueness for a class of stochastic Fokker-Planck and porous media   equations
  The purpose of the present note consists of first showing a uniqueness result for a stochastic Fokker-Planck equation under very general assumptions. In particular, the second order coefficients may be just measurable and degenerate. We also provide a proof for uniqueness of a stochastic porous media equation in a fairly large space. 
Michael R\"ockner, Francesco Russo (ENSTA ParisTech UMA)
math.PR