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Contrôlabilité uniforme d'un problème de Stokes avec un terme de transport quand la diffusion vaut zéro
- 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.
- Subjects :
- 0209 industrial biotechnology
Control and Optimization
Mathematics::Analysis of PDEs
02 engineering and technology
01 natural sciences
Matrix decomposition
Physics::Fluid Dynamics
020901 industrial engineering & automation
[MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP]
Boundary value problem
[MATH]Mathematics [math]
0101 mathematics
Diffusion (business)
Mathematics
Stokes system
Applied Mathematics
010102 general mathematics
Mathematical analysis
Null (mathematics)
Zero (complex analysis)
Singular limits
Term (time)
Controllability
uniform controllability
spectral decomposition
transport equation
Convection–diffusion equation
[MATH.MATH-SP]Mathematics [math]/Spectral Theory [math.SP]
Subjects
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