Nonlinear neutral delay differential equations of fourth-order: oscillation of solutions

RP Agarwal, O Bazighifan, MA Ragusa - Entropy, 2021 - mdpi.com
The objective of this paper is to study oscillation of fourth-order neutral differential equation.
By using Riccati substitution and comparison technique, new oscillation conditions are …

Nonlinear differential equations with distributed delay: some new oscillatory solutions

B Almarri, AH Ali, AM Lopes, O Bazighifan - Mathematics, 2022 - mdpi.com
The oscillation of a class of fourth-order nonlinear damped delay differential equations with
distributed deviating arguments is the subject of this research. We propose a new …

Extended approach to the asymptotic behavior and symmetric solutions of advanced differential equations

O Bazighifan, AH Ali, F Mofarreh, YN Raffoul - Symmetry, 2022 - mdpi.com
We studied the asymptotic behavior of fourth-order advanced differential equations of the
form a υ w′′′ υ β′+ q υ gw δ υ= 0. New results are presented for the oscillatory …

Qualitative properties of solutions of second-order neutral differential equations

O Bazighifan, M Ruggieri, SS Santra, A Scapellato - Symmetry, 2020 - mdpi.com
In this work, we consider a type of second-order functional differential equations and
establish qualitative properties of their solutions. These new results complement and …

Neutral delay differential equations: oscillation conditions for the solutions

O Bazighifan, H Alotaibi, AAA Mousa - Symmetry, 2021 - mdpi.com
The purpose of this article is to explore the asymptotic properties for a class of fourth-order
neutral differential equations. Based on a comparison with the differential inequality of the …

Explicit criteria for the oscillation of second-order differential equations with several sub-linear neutral coefficients

SS Santra, T Ghosh, O Bazighifan - Advances in Difference Equations, 2020 - Springer
In this work, we present sufficient conditions for oscillation of all solutions of a second-order
functional differential equation. We consider two special cases when γ> β γ>β and γ< β γ<β …

A new approach in the study of oscillation criteria of even-order neutral differential equations

O Moaaz, J Awrejcewicz, O Bazighifan - Mathematics, 2020 - mdpi.com
Mathematics | Free Full-Text | A New Approach in the Study of Oscillation Criteria of Even-Order
Neutral Differential Equations Next Article in Journal Detecting the Proportion of Traders in the …

Improved conditions for oscillation of functional nonlinear differential equations

O Bazighifan, M Postolache - Mathematics, 2020 - mdpi.com
The aim of this work is to study oscillatory properties of a class of fourth-order delay
differential equations. New oscillation criteria are obtained by using generalized Riccati …

An improved criterion for the oscillation of fourth-order differential equations

O Bazighifan, M Ruggieri, A Scapellato - Mathematics, 2020 - mdpi.com
The main purpose of this manuscript is to show asymptotic properties of a class of differential
equations with variable coefficients r ν w‴ ν β′+∑ i= 1 jqi ν y κ gi ν= 0, where ν≥ ν 0 and w …

Oscillation results for higher order differential equations

C Park, O Moaaz, O Bazighifan - Axioms, 2020 - mdpi.com
Axioms | Free Full-Text | Oscillation Results for Higher Order Differential Equations Next Article
in Journal On the Numerical Solution of Ordinary, Interval and Fuzzy Differential Equations by …