We study the feedback stabilization around periodic solutions of parabolic control systems with unbounded control operators, by controls of finite dimension. We prove that the stabilization of the infinite dimensional system relies on the stabilization of a finite dimensional control system obtained by projection and next transformed via its Floquet-Lyapunov representation. We emphasize that this approach allows us to define feedback control laws by solving Riccati equations of finite dimension. This approach, which has been developed in the recent years for the boundary stabilization of autonomous parabolic systems, seems to be totally new for the stabilization of periodic systems of infinite dimension. We apply results obtained for the linearized system to prove a local stabilization result, around periodic solutions, of the Navier-Stokes equations, by finite dimensional Dirichlet boundary controls.
Mots-clés : Periodic parabolic systems, feedback stabilization, finite dimensional controls, Navier-Stokes equations
@article{COCV_2020__26_1_A101_0, author = {Badra, Mehdi and Mitra, Debanjana and Ramaswamy, Mythily and Raymond, Jean-Pierre}, title = {Local feedback stabilization of time-periodic evolution equations by finite dimensional controls}, journal = {ESAIM: Control, Optimisation and Calculus of Variations}, publisher = {EDP-Sciences}, volume = {26}, year = {2020}, doi = {10.1051/cocv/2020041}, mrnumber = {4185060}, zbl = {1460.93079}, language = {en}, url = {http://www.numdam.org/articles/10.1051/cocv/2020041/} }
TY - JOUR AU - Badra, Mehdi AU - Mitra, Debanjana AU - Ramaswamy, Mythily AU - Raymond, Jean-Pierre TI - Local feedback stabilization of time-periodic evolution equations by finite dimensional controls JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2020 VL - 26 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv/2020041/ DO - 10.1051/cocv/2020041 LA - en ID - COCV_2020__26_1_A101_0 ER -
%0 Journal Article %A Badra, Mehdi %A Mitra, Debanjana %A Ramaswamy, Mythily %A Raymond, Jean-Pierre %T Local feedback stabilization of time-periodic evolution equations by finite dimensional controls %J ESAIM: Control, Optimisation and Calculus of Variations %D 2020 %V 26 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv/2020041/ %R 10.1051/cocv/2020041 %G en %F COCV_2020__26_1_A101_0
Badra, Mehdi; Mitra, Debanjana; Ramaswamy, Mythily; Raymond, Jean-Pierre. Local feedback stabilization of time-periodic evolution equations by finite dimensional controls. ESAIM: Control, Optimisation and Calculus of Variations, Tome 26 (2020), article no. 101. doi : 10.1051/cocv/2020041. http://www.numdam.org/articles/10.1051/cocv/2020041/
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