On monotone solutions and a self-adjoint spectral problem for a functional-differential equation of even order

For a self-adjoint boundary value problem for a functional-differential equation of even order, the basis property of the system of eigenfunctions and the equivalence of such statements as the positivity of the corresponding quadratic functional, the Jacobi condition and the positivity of the Green...

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Bibliographic Details
Main Authors: Manuel Alves, Sergey Labovskiy
Format: Article
Language:English
Published: University of Szeged 2019-08-01
Series:Electronic Journal of Qualitative Theory of Differential Equations
Subjects:
Online Access:http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=7531