Zobrazeno 1 - 10
of 42
pro vyhledávání: '"SHIXU MENG"'
Autor:
SHIXU MENG, BO ZHANG
Publikováno v:
SIAM Journal on Numerical Analysis; 2024, Vol. 62 Issue 3, p1443-1464, 22p
Autor:
Shixu Meng
Publikováno v:
SIAM Journal on Applied Mathematics. 83:394-417
This paper investigates the inverse source problem with a single propagating mode at multiple frequencies in an acoustic waveguide. The goal is to provide both theoretical justifications and efficient algorithms for imaging extended sources using the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2573c2e75e1e7479bc3a978ac33bb52b
https://doi.org/10.1137/21m1462891
https://doi.org/10.1137/21m1462891
Autor:
SHIXU MENG
Publikováno v:
SIAM Journal on Applied Mathematics; 2023, Vol. 83 Issue 5, p2003-2026, 24p
Publikováno v:
Journal of Computational and Applied Mathematics. 358:359-373
We provide a functional framework and a numerical algorithm to compute the Bloch variety for Maxwell’s equations when the electric permittivity is frequency dependent. We incorporate the idea of a mixed formulation for Maxwell’s equations to obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23da7e934e4be88f68672df2639da70b
https://doi.org/10.1016/j.cam.2019.03.027
https://doi.org/10.1016/j.cam.2019.03.027
Publikováno v:
Journal of Computational Physics. 392:556-577
We introduce a direct, linear sampling approach to imaging in an acoustic waveguide with sound hard walls. The waveguide terminates at one end and has unknown geometry due to compactly supported wall deformations. The goal of imaging is to determine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::336e597b6c6db316fd1abf021615098a
https://doi.org/10.1016/j.jcp.2019.04.072
https://doi.org/10.1016/j.jcp.2019.04.072
We introduce two data completion algorithms for the limited-aperture problems in inverse acoustic scattering. Both completion algorithms are independent of the topological and physical properties of the unknown scatterers. The main idea is to relate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dca4ef3b58675e90ef00b065652122a5
This paper investigates the inverse scattering problems using sampling methods with near field measurements. The near field measurements appear in two classical inverse scattering problems: the inverse scattering for obstacles and the interior invers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b024123d424d7cf02bc8651952a4078
We pursue a low-wavenumber, second-order homogenized solution of the time-harmonic wave equation at both low and high frequency in periodic media with a source term whose frequency resides inside a band gap. Considering the wave motion in an unbounde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8fc8752932f2dee61fc09a3bd54992d
http://arxiv.org/abs/2002.02838
http://arxiv.org/abs/2002.02838
Autor:
Houssem Haddar, Shixu Meng
Publikováno v:
Journal de Mathématiques Pures et Appliquées
Journal de Mathématiques Pures et Appliquées, Elsevier, 2018, 120, pp.1-32
HAL
Journal de Mathématiques Pures et Appliquées, 2018, 120, pp.1-32
Journal de Mathématiques Pures et Appliquées, Elsevier, 2018, 120, pp.1-32
HAL
Journal de Mathématiques Pures et Appliquées, 2018, 120, pp.1-32
International audience; In this paper we consider the transmission eigenvalue problem for Maxwell's equations corresponding to nonmagnetic inhomogeneities with contrast in electric permittivity that has fixed sign (only) in a neighborhood of the boun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ef44906786ef2bbcead0958827d84db
https://hal.archives-ouvertes.fr/hal-01945650v2/document
https://hal.archives-ouvertes.fr/hal-01945650v2/document
Publikováno v:
SIAM Journal on Applied Mathematics; Feb2022, Vol. 82 Issue 1, p244-266, 23p