Zobrazeno 1 - 10
of 184
pro vyhledávání: '"Dolean, V"'
Autor:
Operto, S., Amestoy, P., Aghamiry, H. S., Beller, S., Buttari, A., Combe, L., Dolean, V., Gerest, M., Guo, G., Jolivet, P., L'Excellent, J. -Y., Mamfoumbi, F., Mary, T., Puglisi, C., Ribodetti, A., Tournier, P. -H.
Frequency-domain Full Waveform Inversion (FWI) is potentially amenable to efficient processing of full-azimuth long-offset stationary-recording seabed acquisition carried out with sparse layout of ocean bottom nodes (OBNs) and broadband sources becau
Externí odkaz:
http://arxiv.org/abs/2210.16767
We introduce new finite-dimensional spaces specifically designed to approximate the solutions to high-frequency Helmholtz problems with smooth variable coefficients in dimension $d$. These discretization spaces are spanned by Gaussian coherent states
Externí odkaz:
http://arxiv.org/abs/2208.04851
Efficient frequency-domain Full Waveform Inversion (FWI) of long-offset node data can be designed with a few discrete frequencies hence allowing for compact volume of data to be managed. Moreover, attenuation effects can be straightforwardly implemen
Externí odkaz:
http://arxiv.org/abs/2110.15113
Akademický článek
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Autor:
Tournier, P. -H., Aliferis, I., Bonazzoli, M., de Buhan, M., Darbas, M., Dolean, V., Hecht, F., Jolivet, P., Kanfoud, I. El, Migliaccio, C., Nataf, F., Pichot, C., Semenov, S.
Publikováno v:
Parallel Computing, 85:88-97, 2019
The motivation of this work is the detection of cerebrovascular accidents by microwave tomographic imaging. This requires the solution of an inverse problem relying on a minimization algorithm (for example, gradient-based), where successive iteration
Externí odkaz:
http://arxiv.org/abs/1607.02573
Publikováno v:
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 31(2):22-29, 2018
This paper combines the use of high order finite element methods with parallel preconditioners of domain decomposition type for solving electromagnetic problems arising from brain microwave imaging. The numerical algorithms involved in such complex i
Externí odkaz:
http://arxiv.org/abs/1605.04521
For linear problems, domain decomposition methods can be used directly as iterative solvers, but also as preconditioners for Krylov methods. In practice, Krylov acceleration is almost always used, since the Krylov method finds a much better residual
Externí odkaz:
http://arxiv.org/abs/1605.04419
Multitrace formulations (MTFs) are based on a decomposition of the problem domain into subdomains, and thus domain decomposition solvers are of interest. The fully rigorous mathematical MTF can however be daunting for the non-specialist. We introduce
Externí odkaz:
http://arxiv.org/abs/1605.04422
Publikováno v:
Mathematics of Computation, 2019 Nov 01. 88(320), 2559-2604.
Externí odkaz:
https://www.jstor.org/stable/26756428
Autor:
Tournier, P.-H., Aliferis, I., Bonazzoli, M., Buhan, M. de, Darbas, M., Dolean, V., Hecht, F., Jolivet, P., El Kanfoud, I., Migliaccio, C., Nataf, F., Pichot, Ch., Semenov, S.
Publikováno v:
In Parallel Computing July 2019 85:88-97