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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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https://hal.archives-ouvertes.fr/hal-03140709
Contributor : Takéo Takahashi <>
Submitted on : Saturday, February 13, 2021 - 3:56:28 PM
Last modification on : Monday, March 15, 2021 - 3:12:58 PM

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  • HAL Id : hal-03140709, version 1

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Sergio Guerrero, Takéo Takahashi. Controllability to trajectories of a Ladyzhenskaya model for a viscous incompressible fluid. 2021. ⟨hal-03140709⟩

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