scientific article

zbMATH Open0581.35011MaRDI QIDQ3704262

R. R. Gadyl'shin

Publication date: 1984

Title of this publication is not available (Why is that?)

zbMATH Keywords

small parameterboundary value problemHelmholtz operatorzero boundary conditionscomplete asymptotic factorizationestimates for the approximations

Mathematics Subject Classification ID

Singular perturbations in context of PDEs (35B25) Asymptotic expansions of solutions to PDEs (35C20) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

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