Equivalence of dynamical ensembles and Navier Stokes equations
  A reversible version of the Navier Stokes equation is studied. A conjecture emerges stating the equivalence between the reversible equation and the usual Navier Stokes equation. The latter appears as a statement of ensembles equivalence in the limit of infinite Reynolds number, which plays the role of the thermodynamic limit. 
Giovanni Gallavotti (Dipartimento di Fisica, Universita' di Roma,   Roma, Italy)