Nonlinear Neutral Delay Differential Equations of Fourth-Order: Oscillation of Solutions.

Research paper by Ravi P RP Agarwal, Omar O Bazighifan, Maria Alessandra MA Ragusa

Indexed on: 28 Jan '21Published on: 28 Jan '21Published in: Entropy (Basel, Switzerland)


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 obtained which insure that all solutions of the studied equation are oscillatory. Our results complement some known results for neutral differential equations. An illustrative example is included.