Ramification of a multiple eigenvalue of the Dirichlet problem for the Laplacian under singular perturbation of the boundary condition
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Publication:1316919
DOI10.1007/BF01210435zbMath0816.35093OpenAlexW269357978MaRDI QIDQ1316919
Publication date: 12 April 1994
Published in: Mathematical Notes (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/bf01210435
Singular perturbations in context of PDEs (35B25) Estimates of eigenvalues in context of PDEs (35P15) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)
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