The aim of this paper is to derive sufficient conditions for the linear delay differential equation (r(t)y′(t))′ + p(t)y(τ(t)) = 0 to be oscillatory by using a generalization of the Lagrange mean-value theorem, the Riccati differential inequality and the Sturm comparison theorem.
@article{bwmeta1.element.doi-10_2478_s11533-008-0030-z,
author = {J\'an Ohriska},
title = {Oscillation of second-order linear delay differential equations},
journal = {Open Mathematics},
volume = {6},
year = {2008},
pages = {439-452},
zbl = {1153.34344},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0030-z}
}
Ján Ohriska. Oscillation of second-order linear delay differential equations. Open Mathematics, Tome 6 (2008) pp. 439-452. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0030-z/
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