Determination of a coefficient in the wave equation with a single measurement

被引:32
作者
Bellassoued, Mourad [1 ]
Yamamoto, Masahiro [2 ]
机构
[1] Univ Carthage, Fac Sci Bizerte, Dept Math, Bizerte, Tunisia
[2] Univ Tokyo, Dept Math Sci, Tokyo, Japan
关键词
Carleman estimates; inverse problems;
D O I
10.1080/00036810802369249
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We consider an inverse problem of finding the coefficient of the second-order derivatives in a second-order hyperbolic equation with variable coefficients. Under a weak regularity assumption and a geometrical condition on the metric, we prove the uniqueness in a multidimensional hyperbolic inverse problem with a single measurement of Neumann data on a suitable sub-boundary. Moreover we show that our uniqueness yields the Lipschitz stability estimate in L(2) space for solution to the inverse problem. The key is a Carleman estimate for a hyperbolic operator with variable coefficients.
引用
收藏
页码:901 / 920
页数:20
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