2024
DOI: 10.5802/ahl.193
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Null-controllability properties of the generalized two-dimensional Baouendi–Grushin equation with non-rectangular control sets

Jérémi Dardé,
Armand Koenig,
Julien Royer

Abstract: We consider the null-controllability problem for the generalized Baouendi-Grushin equation (∂ t − ∂ 2x − q(x) 2 ∂ 2 y )f = 1 ω u on a rectangular domain. Sharp controllability results already exist when the control domain ω is a vertical strip, or when q(x) = x. In this article, we provide upper and lower bounds for the minimal time of null-controllability for general q and non-rectangular control region ω. In some geometries for ω, the upper bound and the lower bound are equal, in which case, we know the exac… Show more

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