Recurrent Motions in the Nonautonomous Navier-Stokes System
  We prove the existence of recurrent or Poisson stable motions in the Navier-Stokes fluid system under recurrent or Poisson stable forcing, respectively. We use an approach based on nonautonomous dynamical systems ideas. 
Vena Pearl Bongolan-Walsh, David Cheban, Jinqiao Duan