scientific article

zbMath0537.34019MaRDI QIDQ3322430

István Joó, Vilmos Komornik

Publication date: 1983

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

eigenfunctionssecond-order ordinary differential operatorsFourier seriessquare-integrable function

Mathematics Subject Classification ID

General theory of ordinary differential operators (47E05) Fourier coefficients, Fourier series of functions with special properties, special Fourier series (42A16) Ordinary differential operators (34L99) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)

Related Items (13)

On the equiconvergence of eigenfunction expansions associated with ordinary linear differential operators ⋮ Exact estimate for the spectral function of the singular Schrödinger operator ⋮ On the Riesz means of expansions by Riesz bases formed by eigenfunctions of the Schrödinger operator ⋮ On the estimate for the second derivative of the difference of partial sums arising by selfadjoint Sturm-Liouville operators ⋮ Estimate for the difference of the first derivatives of partial sums arising by non-selfadjoint Sturm-Liouville operators ⋮ Local uniform convergence of the Riesz means of Laplace and Dirac expansions ⋮ Eigenfunction expansion for the three-dimensional Dirac operator ⋮ Unnamed Item ⋮ On the convergence of eigenfunction expansions ⋮ On the equiconvergence of expansions by Riesz bases formed by eigenfunctions of a linear differential operator of order 2n ⋮ Some new estimates for the eigenfunctions of higher order of a linear differential operator ⋮ Local uniform convergence of the eigenfunction expansion associated with the Laplace operator. I ⋮ Local uniform convergence of the eigenfunction expansion associated with the Laplace operator. II

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