Operator solutions for fractional Fokker-Planck equations
  We obtain exact results for fractional equations of Fokker-Planck type using evolution operator method. We employ exact forms of one-sided Levy stable distributions to generate a set of self-reproducing solutions. Explicit cases are reported and studied for various fractional order of derivatives, different initial conditions, and for different versions of Fokker-Planck operators. 
K. Gorska, K. A. Penson, D. Babusci, G. Dattoli, G. H. E. Duchamp
cond-mat.stat-mech