Multivariate nonlinear Fokker-Planck equations are derived which are solved
by equilibrium distributions of generalized thermostatistics. The multivar
iate Fokker-Planck equations proposed by Kaniadakis and by Borland et al. a
re re-obtained as special cases. Furthermore, a Kramers equation is derived
for particles obeying the nonextensive thermostatistics proposed by Tsalli
s. (C) 2001 Elsevier Science B.V. All rights reserved.