Null controllability of linear and semilinear nonlocal heat equations with an additive integral kernel
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2019
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Society for Industrial and Applied Mathematics Publications
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We consider a linear nonlocal heat equation in a bounded domain Ω ⊂ ℝ with Dirichlet boundary conditions. The nonlocality is given by the presence of an integral kernel. We analyze the problem of controllability when the control acts on an open subset of the domain. It is by now known that the system is null controllable when the kernel is time-independent and analytic or, in the one-dimensional case, in separated variables. In this paper, we relax this assumption and we extend the result to a more general class of kernels. Moreover, we get explicit estimates on the cost of null controllability that allow us to extend the result to some semilinear models.
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Biccari, U., & Hernández-Santamaría, V. (2019). Null controllability of linear and semilinear nonlocal heat equations with an additive integral kernel. SIAM Journal on Control and Optimization, 57(4), 2924-2938. https://doi.org/10.1137/18M1218431