scientific article; zbMATH DE number 3355579
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Publication:5630044
zbMath0224.35015MaRDI QIDQ5630044
Vladimir Il'in, Shavkat A. Alimov
Publication date: 1971
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
General topics in linear spectral theory for PDEs (35P05) Theoretical approximation in context of PDEs (35A35) Higher-order elliptic equations (35J30)
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Sharp Estimates for Lebesgue Constants ⋮ Divergence almost everywhere on Riesz means of spectral eigenfunction expansions for the Laplace operator ⋮ Construction of self‐adjoint differential operators with prescribed spectral properties ⋮ Fourier-Laplace series on a sphere ⋮ Divergence of spectral expansions connected with elliptic operators ⋮ A Note on the Strong Summability of the Riesz Means of Multiple Fourier Series ⋮ Uniform convergence of spectral resolutions ⋮ Saturation of the approximation by spectral decompositions.
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