Enforced stability of an eigenvalue in the continuous spectrum of a waveguide with an obstacle

DOI10.1134/S096554251203013XzbMath1249.78029OpenAlexW2007879987MaRDI QIDQ2901087

Sergueï A. Nazarov

Publication date: 16 July 2012

Published in: Computational Mathematics and Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1134/s096554251203013x

zbMATH Keywords

perturbationaugmented scattering matrixcompulsory stabilityeigenvalue in the continuous spectrumwaveguide with an obstacle

Mathematics Subject Classification ID

Estimates of eigenvalues in context of PDEs (35P15) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Antennas, waveguides in optics and electromagnetic theory (78A50)

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