The Fokker-Planck equation, and stationary densities
  The most general local Markovian stochastic model is investigated, for which it is known that the evolution equation is the Fokker-Planck equation. Special cases are investigated where uncorrelated initial states remain uncorrelated. Finally, stochastic one-dimensional fields with local interactions are studied that have kink-solutions. 
Amir Aghamohammadi, Mohammad Khorrami