Controllability of Evolution Equations with Memory

Controllability of Evolution Equations with Memory
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具有记忆能力的演化方程的可控性

DOI:
10.1137/151004239
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发表时间:
2017-05
影响因子:
2.2
通讯作者:
Enrique Zuazua
Enrique Zuazua
中科院分区:
数学2区
文献类型:
--
作者:
Felipe W. Chaves-Silva;Xu Zhang;Enrique Zuazua

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本文致力于研究具有记忆项的演化方程的零可控性。这个问题具有挑战性,不仅因为状态方程包含记忆项,还因为必须强化最后时刻的经典可控性要求,涉及记忆项的贡献,以确保解达到平衡。使用对偶论证,问题被简化为获得伴随系统的合适的可观测性估计。我们首先考虑涉及记忆项的有限维动力系统,并导出可控性的等级条件。然后通过卡尔曼估计,建立了一些带记忆项的抛物方程的零可控性。
This article is devoted to studying the null controllability of evolution equations with memory terms. The problem is challenging not only because the state equation contains memory terms but also because the classical controllability requirement at the final time has to be reinforced, involving the contribution of the memory term, to ensure that the solution reaches the equilibrium. Using duality arguments, the problem is reduced to the obtention of suitable observability estimates for the adjoint system. We first consider finite-dimensional dynamical systems involving memory terms and derive rank conditions for controllability. Then the null controllability property is established for some parabolic equations with memory terms, by means of Carleman estimates.
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