A Missed Persistence Property for the Euler Equations, and its Effect on Inviscid Limits

Details A Missed Persistence Property for the Euler Equations, and its Effect on Inviscid Limits A Missed Persistence Property for the Euler Equations, and its Effect on Inviscid Limits

2010-11-04

arxiv.org/abs/1011.1117v2

Mathematics

Analysis of PDEs

Scientific paper

We consider the problem of the strong convergence, as the viscosity goes to zero, of the solutions to the three-dimensional evolutionary Navier-Stokes equations under a Navier slip-type boundary condition to the solution of the Euler equations under the zero flux boundary condition. In spite of the arbitrarily strong convergence results proved in the flat boundary case, see [4], it was shown in reference [5] that the result is false in general, by constructing an explicit family of smooth initial data in the sphere, for which the result fails. Our aim here is to present a more general, simpler and incisive proof. In particular, counterexamples can be displayed in arbitrary, smooth, domains. As in [5], the proof is reduced to the lack of a suitable persistence property for the Euler equations. This negative result is proved by a completely different approach.

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