ASYMPTOTIC EXPANSIONS AND DEFICIENCY INDICES ASSOCIATED WITH THIRD-ORDER SELF-ADJOINT DIFFERENTIAL OPERATORS

DOI10.1093/qmath/24.1.177zbMath0262.34009OpenAlexW1993622117MaRDI QIDQ5677812

Keith Unsworth

Publication date: 1973

Published in: The Quarterly Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1093/qmath/24.1.177

Mathematics Subject Classification ID

General theory of ordinary differential operators (47E05) Linear ordinary differential equations and systems (34A30) Asymptotic properties of solutions to ordinary differential equations (34D05)

Related Items (9)

ON THE TITCHMARSH-WEYL THEORY OF ORDINARY SYMMETRIC ODD-ORDER DIFFERENTIAL EXPRESSIONS AND A DIRECT CONVERGENCE THEOREM ⋮ Asymptotic theory for third‐order differential equations ⋮ Asymptotic theory for a critical class of third-order differential equations ⋮ Asymptotic theory for third-order differential equations of Euler type ⋮ Asymptotic theory for third-order differential equations with extension to higher odd-order equations ⋮ Asymptotic theory for a general third-order differential equation of Euler type ⋮ Quasiregularity conditions for a pure imaginary singular differential operator of third order ⋮ Asymptotic theory and deficiency indices for differential equations of odd order ⋮ The deficiency index problem for ordinary selfadjoint differential operators

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