Wavenumber-Explicit Continuity and Coercivity Estimates in Acoustic Scattering by Planar Screens
Wavenumber-Explicit Continuity and Coercivity Estimates in Acoustic Scattering by Planar Screens
复制标题
平面屏幕声散射中的波数显式连续性和矫顽力估计
DOI:
10.1007/s00020-015-2233-6
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发表时间:
2015
影响因子:
0.8
通讯作者:
Chandler-Wilde S
中科院分区:
文献类型:
--
作者:
Chandler-Wilde S
We study the classical first-kind boundary integral equation reformulations of time-harmonic acoustic scattering by planar sound-soft (Dirichlet) and sound-hard (Neumann) screens. We prove continuity and coercivity of the relevant boundary integral operators (the acoustic single-layer and hypersingular operators respectively) in appropriate fractional Sobolev spaces, with wavenumber-explicit bounds on the continuity and coercivity constants. Our analysis, which requires no regularity assumptions on the boundary of the screen (other than that the screen is a relatively open bounded subset of the plane), is based on spectral representations for the boundary integral operators, and builds on results of Ha-Duong (Jpn J Ind Appl Math 7:489–513, 1990; Integr Equ Oper Theory 15:427–453, 1992).
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影响因子:
3.7
作者:
H. Holm;M. Maischak;E. Stephan
通讯作者:
E. Stephan
影响因子:
2.9
作者:
M. Löhndorf;J. Melenk
通讯作者:
J. Melenk
DOI:
10.1137/110856812
发表时间:
2013-02
期刊:
SIAM J. Numer. Anal.
影响因子:
--
作者:
D. Hewett;S. Langdon;J. Melenk
通讯作者:
D. Hewett;S. Langdon;J. Melenk
影响因子:
0.8
作者:
Chandler-Wilde S
通讯作者:
Chandler-Wilde S
影响因子:
2.1
作者:
D. Hewett;S. Langdon;S. Chandler
通讯作者:
S. Chandler