The Bessel and Hilbert properties for root functions of second-order ordinary differential operators with the Carleman condition violated

DOI10.1134/S1064562408030150zbMath1161.34360OpenAlexW2071958820MaRDI QIDQ954196

Publication date: 10 November 2008

Published in: Doklady Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1134/s1064562408030150

Mathematics Subject Classification ID

Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10)

Cites Work

On the eigenvalue distribution and a Bessel property criterion for root functions of a differential operator. I
The Hilbert and Bessel properties of systems of eigenfunctions of second-order operators

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