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Journal Articles Comptes Rendus. Mathématique Year : 2021

Controllability to trajectories of a Ladyzhenskaya model for a viscous incompressible fluid

Abstract

We consider the controllability of a viscous incompressible fluid modeled by the Navier-Stokes systemwith a nonlinear viscosity. To prove the controllability to trajectories, we linearize around a trajectory andthe corresponding linear system includes a nonlocal spatial term. Our main result is a Carleman estimatefor the adjoint of this linear system. This estimate yields in a standard way the null controllability of thelinear system and the local controllability to trajectories. Our method to obtain the Carleman estimate iscompletely general and can be adapted to other parabolic systems when a Carleman estimate is available.
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Dates and versions

hal-03140709 , version 1 (13-02-2021)

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Sergio Guerrero, Takéo Takahashi. Controllability to trajectories of a Ladyzhenskaya model for a viscous incompressible fluid. Comptes Rendus. Mathématique, 2021, ⟨10.5802/crmath.202⟩. ⟨hal-03140709⟩
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