scientific article; zbMATH DE number 3617016
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Publication:4180831
zbMath0397.47023MaRDI QIDQ4180831
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Publication date: 1978
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Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Completeness of eigenfunctions and eigenfunction expansions in context of PDEs (35P10) General theory of ordinary differential operators (47E05) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)
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Uniform convergence of the eigenfunction expansions associated with the bi-harmonic operator on the closed domain ⋮ On the Riesz summability of the eigenfunction expansions on a closed domain
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