Oblique derivative problem with variable inclination angle: location of the spectrum and the absence of the basis property of the system of root functions
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Publication:662460
DOI10.1134/S0012266111100119zbMath1267.35138MaRDI QIDQ662460
Publication date: 23 February 2012
Published in: Differential Equations (Search for Journal in Brave)
General topics in linear spectral theory for PDEs (35P05) Completeness of eigenfunctions and eigenfunction expansions in context of PDEs (35P10) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)
Related Items (3)
Mixed oblique derivative problem for the Helmholtz equation in a half-disk ⋮ Oblique derivative problem for the Helmholtz equation in a disk ⋮ Gellerstedt type directional derivative problem for an equation of the mixed type with a spectral parameter
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