Stability in the determination of a time-dependent coefficient for wave equations from partial data

Yavar Kian

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arXiv · 1406.5734

Stability in the determination of a time-dependent coefficient for wave equations from partial data

Yavar Kian

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Abstract

We consider the stability in the inverse problem consisting of the determination of a time-dependent coefficient of order zero $q$, appearing in a Dirichlet initial-boundary value problem for a wave equation $\partial_t^2u-Δu+q(t,x)u=0$ in $Q=(0,T)\timesΩ$ with $Ω$ a $C^2$ bounded domain of $\mathbb R^n$, $n\geq2$, from partial observations on $\partial Q$. The observation is given by a boundary operator associated to the wave equation. Using suitable complex geometric optics solutions and Carleman estimates, we prove a stability estimate in the determination of $q$ from the boundary operator.

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Yavar Kian. 2015-06-02. Stability in the determination of a time-dependent coefficient for wave equations from partial data. https://arxiv.org/abs/1406.5734

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