Boundary controllability for variable coefficients one-dimensional wave equation with interior degeneracy

• Autorzy: Azzaoui Mohamed , Salhi Jawad , Tilioua Mouhcine

Identyfikatory

DOI

10.1515/jaa-2023-0125

• Języki publikacji: EN

Abstrakty

EN

In this paper, we study boundary controllability for the linear extension problem of a wave equation with space-dependent coefficients and having an internal degeneracy. For this purpose, we mainly focus on the well-posedness and the boundary null controllability of a relaxed version of the original problem, namely, to some degenerate transmission problem. The key ingredient is to derive direct and inverse inequalities for the associated homogeneous degenerate adjoint problem. By these inequalities, we deduce that the transmission problem has a unique solution by transposition and this solution is null controllable. Moreover, we give an explicit formula of the controllability time.

Słowa kluczowe

EN

boundary controllability; degenerate wave equation; Hilbert uniqueness method; interior degeneracy; variable coefficients

• Wydawca: De Gruyter
• Czasopismo: Journal of Applied Analysis
• Rocznik: 2024
• Tom: Vol. 30, nr 2
• Strony: 325--343
• Opis fizyczny: Bibliogr. 37 poz.

Twórcy

autor

Azzaoui Mohamed

• FST Errachidia, MAIS Laboratory, Moulay Ismail University of Meknes, MAMCS Group, 52000 Errachidia, Morocco

autor

Salhi Jawad

• FST Errachidia, MAIS Laboratory, Moulay Ismail University of Meknes, MAMCS Group, 52000 Errachidia, Morocco

• https://orcid.org/0000-0001-9290-9681

autor

Tilioua Mouhcine

• FST Errachidia, MAIS Laboratory, Moulay Ismail University of Meknes, MAMCS Group, 52000 Errachidia, Morocco

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