Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Semyon Tsynkov"'
Publikováno v:
Applied Numerical Mathematics. 173:51-78
Many wave propagation problems involve discontinuous material properties. We propose to solve such problems by non-overlapping domain decomposition combined with the method of difference potentials (MDP). The MDP reduces the Helmholtz equation on eac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08775f975232e29a762142bf4bf206e3
https://doi.org/10.1016/j.apnum.2021.10.024
https://doi.org/10.1016/j.apnum.2021.10.024
Publikováno v:
Journal of Computational Electronics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9df009604beeabba111472e44e2079a5
https://doi.org/10.1007/s10825-022-01973-y
https://doi.org/10.1007/s10825-022-01973-y
Autor:
Semyon Tsynkov, S. V. Petropavlovsky
Publikováno v:
Computational Mathematics and Mathematical Physics. 60:711-722
A boundary method for computing unsteady wave propagation in three-dimensional space is proposed. The described approach is based on the method of difference potentials and the Huygens principle, which makes it possible to update the solution on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1edf2a8ee226d8b73b0b4fc944c6af73
https://doi.org/10.1134/s0965542520040144
https://doi.org/10.1134/s0965542520040144
Autor:
Mikhail Gilman, Semyon Tsynkov
Publikováno v:
Inverse Problems. 39:045001
The performance of spaceborne synthetic aperture radars (SARs) is affected by the Earth’s ionosphere. In particular, the ionospheric turbulence causes phase perturbations of the SAR signals, which may lead to image distortions. A convenient way to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a0ef8cc15ba1cb614bf94f091ad713b
https://doi.org/10.1088/1361-6420/acb8d6
https://doi.org/10.1088/1361-6420/acb8d6
Publikováno v:
Journal of Computational Physics. 471:111632
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0d5c2202677e50598c286821f667f19
https://doi.org/10.1016/j.jcp.2022.111632
https://doi.org/10.1016/j.jcp.2022.111632
Publikováno v:
Journal of Scientific Computing. 81:1119-1123
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e52cf5a259e36526357954fd7b118389
https://doi.org/10.1007/s10915-019-01084-0
https://doi.org/10.1007/s10915-019-01084-0
Publikováno v:
Journal of Scientific Computing. 81:1181-1209
We construct a family of compact fourth order accurate finite difference schemes for the three dimensional scalar wave (d’Alembert) equation with constant or variable propagation speed. High order accuracy is of key importance for the numerical sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7f6938c171a9fcb869618ac41dcbd1
https://doi.org/10.1007/s10915-019-00970-x
https://doi.org/10.1007/s10915-019-00970-x
Publikováno v:
Journal of Computational Physics. 376:98-128
Local artificial boundary conditions (ABCs) for the numerical simulation of waves have been successfully used for decades (most notably, the boundary conditions due to Engquist & Majda, Bayliss, Gunzburger & Turkel, and Higdon). The basic idea behind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5526c7a200518eeaddfebf5f5b7b52c
https://doi.org/10.1016/j.jcp.2018.09.040
https://doi.org/10.1016/j.jcp.2018.09.040
Publikováno v:
Journal of Computational Physics. 460:111161
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0504c8c374d2d41d1edc768e23ff9328
https://doi.org/10.1016/j.jcp.2022.111161
https://doi.org/10.1016/j.jcp.2022.111161
Autor:
Semyon Tsynkov, Mikhail Gilman
Publikováno v:
Radio Science. 56
When electromagnetic waves impinge on objects with complex geometries and/or internal structure, we can observe scattering that is distributed in time rather than instantaneous. To detect and characterize such targets, we build the coordinate-delay s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32d3a6b52ed766e5e984476486858daa
https://doi.org/10.1029/2019rs007011
https://doi.org/10.1029/2019rs007011