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Contrôlabilité uniforme d'un problème de Stokes avec un terme de transport quand la diffusion vaut zéro

Authors :
Jon Asier Bárcena-Petisco
Laboratoire Jacques-Louis Lions (LJLL)
Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
This work was supported by grants from Région Ile-de-France
ANR-15-CE40-0010,IFSMACS,Interaction Fluide-Structure : Modélisation, analyse, contrôle et simulation(2015)
Source :
SIAM Journal on Control and Optimization. 58:1597-1625
Publication Year :
2020
Publisher :
Society for Industrial & Applied Mathematics (SIAM), 2020.

Abstract

In this paper we consider a Stokes system with Navier-slip boundary conditions. The main results concern the behaviour of the cost of null controllability with respect to the diffusion coefficient when the control acts in the interior. In particular, we prove in the square that for a sufficiently large time the cost decays exponentially as the diffusion coefficient vanishes, whereas in the cube we prove that for most of the control domains and for any time T > 0 the cost explodes exponentially as the diffusion coefficient vanishes.

Details

ISSN :
10957138 and 03630129
Volume :
58
Database :
OpenAIRE
Journal :
SIAM Journal on Control and Optimization
Accession number :
edsair.doi.dedup.....b69f79f01086dd63c36cbc8b6e53bfda
Full Text :
https://doi.org/10.1137/19m1252004