Some New Oscillation Results for Fourth-Order Neutral Differential Equations with Delay Argument
نویسندگان
چکیده
منابع مشابه
Some New Oscillation Criteria for Higher–order Quasi–linear Neutral Delay Differential Equations
Oscillation criteria for the higher order quasi-linear neutral delay differential equations of the form [r(t)ψ(u(t))|z(n−1)(t)|α−1z(n−1)(t)]′ + m ∑ i=1 qi(t) fi(|u(τi(t))|αi−1u(τi(t))) = 0, t t0, z(t) = u(t) + p(t)u(t −σ),α > 0,αi > 0 (i = 1,2,3, ...,m) , are established under the condition: ∫ ∞ t0 r− 1 α (s)ds = ∞ or ∫ ∞ t0 r− 1 α (s)ds < ∞ respectively, where n is even. The obtained results i...
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ژورنال
عنوان ژورنال: Symmetry
سال: 2020
ISSN: 2073-8994
DOI: 10.3390/sym12081248