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 method and the best tangent space projection integrator via perturbation analysis . Numerical applications are presented and discussed for a Fokker-Planck equation with spatially dependent drift on a flat torus of dimension two and four.