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Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:

Prof. Dr. Carlos Jerez-Hanckes,Universidad Adolfo Ibá?ez, Chile

Inviter:  
Title:
High Order Galerkin Methods for Helmholtz Scattering in Quasi-Periodic Layered Media and Screens
Time & Venue:
2021.10.14 09:00-10:00 ZOOM会议ID:885 7850 1432 入会密码:amss
Abstract:

We present a fast spectral Galerkin scheme for the discretization of boundary integral equations arising from Helmholtz problems in multi-layered periodic structures or gratings as well as in screens. Employing suitably parametrized Fourier basis we rigorously establish the well-posedness of both continuous and discrete problems, and prove super-algebraic error convergence rates for the proposed schemes. Through several numerical examples, we confirm our findings and show performances competitive to those attained via Nystro?m methods.

 

 

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