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Cédric Bellis
Researcher at Aix-Marseille University
Publications - 51
Citations - 545
Cédric Bellis is an academic researcher from Aix-Marseille University. The author has contributed to research in topics: Inverse scattering problem & Topological derivative. The author has an hindex of 13, co-authored 47 publications receiving 410 citations. Previous affiliations of Cédric Bellis include University of Minnesota & Centre national de la recherche scientifique.
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On the multi-frequency obstacle reconstruction via the linear sampling method
TL;DR: In this article, the authors investigated the possibility of multi-frequency reconstruction of sound-soft and penetrable obstacles via the linear sampling method involving either far-field or near-field observations of the scattered field.
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Acoustic inverse scattering using topological derivative of far-field measurements-based L2 cost functionals
TL;DR: In this paper, a topological derivative approach applied to the L2-norm of the misfit between far-field measurements is presented, using either the Born approximation or a full-scattering model.
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Homogenization of frame lattices leading to second gradient models coupling classical strain and strain gradient terms
TL;DR: In this article, the homogenized behavior of three-dimensional periodic structures made of welded elastic bars was determined in the framework of static linear elasticity, and it has been shown that such structures can b
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Nature of the transmission eigenvalue spectrum for elastic bodies
TL;DR: In this article, a spectral theory of the interior transmission problem (ITP) for heterogeneous and anisotropic elastic solids is developed. But the spectral theory is not applicable to the problem of inverse scattering involving penetrable obstacles.
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A FEM-based topological sensitivity approach for fast qualitative identification of buried cavities from elastodynamic overdetermined boundary data
TL;DR: In this article, a time-domain topological sensitivity (TS) approach is developed for elastic-wave imaging of media of arbitrary geometry, which quantifies the sensitivity of the misfit cost functional to the creation at a specified location of an infinitesimal hole, expressed in terms of the time convolution of the free field and a supplementary adjoint field.