The deficiency index of ordinary self-adjoint differential operators

DOI10.2140/pjm.1966.16.243zbMath0151.10903OpenAlexW2064774102MaRDI QIDQ2525386

Allen Devinatz

Publication date: 1966

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1966.16.243

zbMATH Keywords

ordinary differential equations

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Almost diagonal systems in asymptotic integration ⋮ A class of symmetric ordinary differential operators whose deficiency numbers differ by an integer† ⋮ The deficiency index of a certain class of ordinary self-adjoint differential operators ⋮ The deficiency index problem for ordinary selfadjoint differential operators