Dans cette note, on considère la contrôlabilité à zéro interne de l'équation de la chaleur N-dimensionnelle, sur des domaines de la forme , avec et un domaine borné et régulier de . Lorsque le contrôle est exercé sur , avec un nombre réel algébrique de degré et un ouvert non vide, on montre la contrôlabilité à zéro, en tout temps . Ce résultat s'appuie sur la stratégie de Lebeau–Robbiano et exige une estimation du coût du contrôle monodimensionnel.
In this Note, we consider the internal null-controllability of the N-dimensional heat equation on domains of the form , with and a smooth domain of . When the control is exerted on , with an algebraic real number of order and a non-empty open subset, we show the null-controllability, for all time . This result is obtained through the Lebeau–Robbiano strategy and requires an upper bound of the cost of the one-dimensional null-control.
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@article{CRMATH_2015__353_10_925_0, author = {Samb, El Hadji}, title = {Internal null-controllability of the {\protect\emph{N}-dimensional} heat equation in cylindrical domains}, journal = {Comptes Rendus. Math\'ematique}, pages = {925--930}, publisher = {Elsevier}, volume = {353}, number = {10}, year = {2015}, doi = {10.1016/j.crma.2015.04.021}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.crma.2015.04.021/} }
TY - JOUR AU - Samb, El Hadji TI - Internal null-controllability of the N-dimensional heat equation in cylindrical domains JO - Comptes Rendus. Mathématique PY - 2015 SP - 925 EP - 930 VL - 353 IS - 10 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2015.04.021/ DO - 10.1016/j.crma.2015.04.021 LA - en ID - CRMATH_2015__353_10_925_0 ER -
%0 Journal Article %A Samb, El Hadji %T Internal null-controllability of the N-dimensional heat equation in cylindrical domains %J Comptes Rendus. Mathématique %D 2015 %P 925-930 %V 353 %N 10 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2015.04.021/ %R 10.1016/j.crma.2015.04.021 %G en %F CRMATH_2015__353_10_925_0
Samb, El Hadji. Internal null-controllability of the N-dimensional heat equation in cylindrical domains. Comptes Rendus. Mathématique, Tome 353 (2015) no. 10, pp. 925-930. doi : 10.1016/j.crma.2015.04.021. http://www.numdam.org/articles/10.1016/j.crma.2015.04.021/
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