Volume 5, 2000
|Page(s)||219 - 258|
|Published online||15 August 2002|
The wave equation with oscillating density: observability at low frequency
Centre de Mathématiques,
École Polytechnique, UMR 7640 du CNRS,
91128 Palaiseau Cedex, France; email@example.com.
Revised: 6 March 2000
We prove an observability estimate for a wave equation with rapidly oscillating density, in a bounded domain with Dirichlet boundary condition.
Mathematics Subject Classification: 35L05 / 35L20 / 35S15 / 93B07
Key words: Bloch wave / observability / microlocal defect measures.
© EDP Sciences, SMAI, 2000
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