Asymptotic behaviour of an eigenvalue in the continuous spectrum of a narrowed waveguide

DOI10.1070/SM2012v203n02ABEH004217zbMath1238.35071OpenAlexW2009804606MaRDI QIDQ2884661

Giuseppe Cardone, Sergueï A. Nazarov, Keijo Matti Ruotsalainen

Publication date: 30 May 2012

Published in: Sbornik: Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1070/sm2012v203n02abeh004217

zbMATH Keywords

asymptotic behaviouraugmented scattering matrixacoustic waveguideeigenvalues in the continuous spectrumwater waves in a channel

Mathematics Subject Classification ID

Estimates of eigenvalues in context of PDEs (35P15) Scattering theory for PDEs (35P25) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

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