THE DEFICIENCY INDEX OF CERTAIN FOURTH-ORDER ORDINARY SELF-ADJOINT DIFFERENTIAL OPERATORS
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Publication:5679157
DOI10.1093/qmath/23.3.267zbMath0263.34022OpenAlexW2042558285MaRDI QIDQ5679157
Publication date: 1972
Published in: The Quarterly Journal of Mathematics (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1093/qmath/23.3.267
Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations (34C10) Asymptotic expansions of solutions to ordinary differential equations (34E05) Ordinary differential operators (34L99)
Related Items (15)
Investigation of the eigenvalues and root functions of the boundary value problem together with a transmission matrix ⋮ On L2and limit-point type solutions of fourth order differential equations ⋮ Asymptotics for the eigenvalues of a fourth order differential operator in a “degenerate” case ⋮ Nonlinear fourth order boundary value problem ⋮ On the rate of the convergence of the characteristic values of an integral operator associated with a dissipative fourth order differential operator in lim-4 case with finite transmission conditions ⋮ 11.—Limit-n Criteria of Integral Type ⋮ On the deficiency indices of a fourth order singular differential operator ⋮ The limit-4 case of fourth-order self-adjoint differential equations ⋮ Investigation of the spectral properties of a fourth order differential operator with finite transmission conditions ⋮ Asymptotic solutions to linear differential equations with coefficients of the power order of growth, 2 ⋮ Limit circle criteria for 2nth order differential operators ⋮ Limit-point (LP) criteria for real symmetric differential expressions of order 2n ⋮ Asymptotic methods for fourth-order differential equations ⋮ Asymptotics for a class of fourth order differential equations ⋮ The deficiency index problem for ordinary selfadjoint differential operators
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