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Journal Articles Journal de Mathématiques Pures et Appliquées Year : 2018

Quantitative Fattorini-Hautus test and minimal null control time for parabolic problems

Abstract

This paper investigates the link between the null controllability property for some abstract parabolic problems and an inequality that can be seen as a quantified Fattorini-Hautus test. Depending on the hypotheses made on the abstract setting considered we prove that this inequality either gives the exact minimal null control time or at least gives the qualitative property of existence of such a minimal time. We also prove that for many known examples of minimal time in the parabolic setting, this inequality recovers the value of this minimal time.
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Dates and versions

hal-01557933 , version 1 (06-07-2017)

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Farid Ammar Khodja, Assia Benabdallah, Manuel González-Burgos, Morgan Morancey. Quantitative Fattorini-Hautus test and minimal null control time for parabolic problems. Journal de Mathématiques Pures et Appliquées, 2018, ⟨10.1016/j.matpur.2018.05.006⟩. ⟨hal-01557933⟩
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