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Almost Complete Transmission of Waves Through Perforated Cross-Walls in a Waveguide with Dirichlet Boundary Condition. / Nazarov, S. A.; Chesnel, L.
в: Siberian Mathematical Journal, Том 62, № 2, 03.2021, стр. 272-291.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Almost Complete Transmission of Waves Through Perforated Cross-Walls in a Waveguide with Dirichlet Boundary Condition
AU - Nazarov, S. A.
AU - Chesnel, L.
N1 - Nazarov, S.A., Chesnel, L. Almost Complete Transmission of Waves Through Perforated Cross-Walls in a Waveguide with Dirichlet Boundary Condition. Sib Math J 62, 272–291 (2021). https://doi.org/10.1134/S0037446621020087
PY - 2021/3
Y1 - 2021/3
N2 - We consider a waveguide composed of two not necessity equal semi-infinite strips (trunks)and a rectangle (resonator)connected by narrow openings in the shared walls.As their diameter vanishes,we construct asymptotics for the scattering coefficients,justifying them by the technique of weighted spaces with detached asymptotics.We establish a criterion for the possibility of observing,at a given frequency, almost complete transmission of waves through both perforated cross-walls.This effect is revealed due to a fine-tuning of the resonator heightand the criterion involves an equationrelating some geometrical characteristics of the waveguideto the wave numbers in the trunks,while any mirror symmetry turns the criterion trivial.
AB - We consider a waveguide composed of two not necessity equal semi-infinite strips (trunks)and a rectangle (resonator)connected by narrow openings in the shared walls.As their diameter vanishes,we construct asymptotics for the scattering coefficients,justifying them by the technique of weighted spaces with detached asymptotics.We establish a criterion for the possibility of observing,at a given frequency, almost complete transmission of waves through both perforated cross-walls.This effect is revealed due to a fine-tuning of the resonator heightand the criterion involves an equationrelating some geometrical characteristics of the waveguideto the wave numbers in the trunks,while any mirror symmetry turns the criterion trivial.
KW - almost complete transmission of waves
KW - asymptotics of scattering coefficients
KW - Dirichlet boundary condition
KW - perforated cross-walls
KW - waveguide
KW - 517.956.8:517.956.328
UR - http://www.scopus.com/inward/record.url?scp=85103933310&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/37b01cbf-393d-3f6e-ad7f-774b33e10258/
U2 - 10.1134/s0037446621020087
DO - 10.1134/s0037446621020087
M3 - Article
AN - SCOPUS:85103933310
VL - 62
SP - 272
EP - 291
JO - Siberian Mathematical Journal
JF - Siberian Mathematical Journal
SN - 0037-4466
IS - 2
ER -
ID: 88365998