Oscillation Criteria for Linear Neutral Delay Differential Equations of First Order

Some new sufficient conditions for oscillation of all solutions of the first-order linear neutral delay differential equations are obtained. Our new results improve many well-known results in the literature. Some examples are inserted to illustrate our results

Oscillation Criteria for Linear Neutral Delay Differential Equations of First Order

Some new sufficient conditions for oscillation of all solutions of the first-order linear neutral delay differential equations are obtained. Our new results improve many well-known results in the literature. Some examples are inserted to illustrate our results

Oscillations for Nonlinear Neutral Delay Differential Equations with Variable Coefficients

A class of nonlinear neutral delay differential equations is considered. Some new oscillation criteria of all solutions are derived. The obtained results generalize and extend some of well known previous results in the literature

Oscillation Criteria of First Order Neutral Delay Differential Equations with Variable Coefficients

Some new oscillation criteria are given for first order neutral delay differential equations with variable coefficients. Our results generalize and extend some of the well-known results in the literature. Some examples are considered to illustrate the main results

Oscillations for Nonlinear Neutral Delay Differential Equations with Variable Coefficients

A class of nonlinear neutral delay differential equations is considered. Some new oscillation criteria of all solutions are derived. The obtained results generalize and extend some of well known previous results in the literature

Some Further Results on Oscillations for Neutral Delay Differential Equations with Variable Coefficients

We study the oscillatory behaviour of all solutions of first-order neutral equations with variable coefficients. The obtained results extend and improve some of the well-known results in the literature. Some examples are given to show the evidence of our new results