Ergodicity of the Finite Dimensional Approximation of the 3d Navier-stokes Equations Forced by a Degenerate Noise
نویسنده
چکیده
We prove ergodicity of the finite dimensional approximations of the three dimensional Navier-Stokes equations, driven by a random force. The forcing noise acts only on a few modes and some algebraic conditions on the forced modes are found that imply the ergodicity. The convergence rate to the unique invariant measure is shown to be exponential.
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