Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The diffeomorphic flow exp (D) associated to the vector field D is the solution at time t = 1 on the trajectory tangent to D at each point (here represented in 2D). We see that the motion of x induced by exp (D)(x) is more compatible with V than this produced by Δ(x) = x + D(x).
