Before revision:  In particular, we establish consistency between the best step-truncation method and the best tangent space projection integrator via perturbation analysis . Numerical applications are presented and discussed for a Fokker-Planck equation on a torus of dimension two and four.
After revision:  In particular, we establish consistency between the best step-truncation methods can be used to compute numerical solutions of high-dimensional PDEs, which have become central to many new areas of application such optimal mass transport, random dynamical systems, and mean field optimal control . Numerical applications are presented and discussed for a Fokker-Planck equation on a torus of dimension two and four.