Enforced stability of a simple eigenvalue in the continuous spectrum of a waveguide

DOI10.1007/s10688-013-0026-8zbMath1325.35120OpenAlexW2095761878MaRDI QIDQ482559

Publication date: 5 January 2015

Published in: Functional Analysis and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s10688-013-0026-8

zbMATH Keywords

continuous spectrum discrete spectrum local perturbations of quantum waveguide perturbation of eigenvalue

Mathematics Subject Classification ID

General topics in linear spectral theory for PDEs (35P05) General theory of partial differential operators (47F05) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Antennas, waveguides in optics and electromagnetic theory (78A50)

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