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Finite-dimensional controllability for systems of Navier-Stokes type

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Abstract

We consider the problem of partial controllability for an evolution equation with a quadratic nonlinearity, in which one should provide, at a given time, a given projection of the solution onto some finite-dimensional subspace by using the action of external forces that belong to one and the same subspace at each time. On the basis of estimates for the solution of a subdifferential Cauchy problem for a system of Navier-Stokes type, we prove the controllability and the existence of a control with minimum norm. We consider applications to the Navier-Stokes equations of a viscous incompressible fluid and a heat convection model.

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Original Russian Text © A.Yu. Chebotarev, 2010, published in Differentsial’nye Uravneniya, 2010, Vol. 46, No. 10, pp. 1495–1503.

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Chebotarev, A.Y. Finite-dimensional controllability for systems of Navier-Stokes type. Diff Equat 46, 1498–1506 (2010). https://doi.org/10.1134/S0012266110100149

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