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JOURNALS // University proceedings. Volga region. Physical and mathematical sciences // Archive

University proceedings. Volga region. Physical and mathematical sciences, 2019 Issue 4, Pages 4–11 (Mi ivpnz94)

Mathematics

Substantiation of the numerical method for solving the diffraction problem on a system of intersecting bodies and screens

Yu. G. Smirnov, M. A. Moskaleva

Penza State University, Penza

Abstract: Background. The problems of electromagnetic wave diffraction on the intersecting bodies and screens are important for solving applied problems associated, for example, with the study and radio coverage areas estimate in controlled rooms. The objectives of this study are to prove the smoothness of the solutions of the integro-differential system corresponding to the problem of electromagnetic waves diffraction on a system of intersecting bodies and screens, and to substantiate a numerical method for solving the problem under study. Material and methods. The problem under investigation is reduced to a system of integro-differential equations using potential theory. The properties of the system are studied using pseudodifferential calculus in Sobolev spaces. Results. The smoothness of the solutions of the obtained system is proved. The application of the numerical method (Galerkin scheme) for solving a system of integro-differential equations is substantiated. Conclusions. The results can be applied to solve various applied problems in radiolocation, electronics, and other fields of electrodynamics and technology.

Keywords: electromagnetic wave diffraction, inhomogeneous anisotropic bodies, perfectly conducting screens, elliptic operator, a system of integral-differential equations.

UDC: 517.3

DOI: 10.21685/2072-3040-2019-4-1



© Steklov Math. Inst. of RAS, 2024