On Classical Solutions of Vlasov-Poisson Fokker-Planck Systems Brian O'DwyerHarold Victory, Jr. Indiana University Mathematics Journal 1990 text pdf 10.1512/iumj.1990.39.39009 10.1512/iumj.1990.39.39009 en Indiana Univ. Math. J. 39 (1990) 105 - 156 state-of-the-art mathematics http://iumj.org/access/