Oscillation criteria for higher order differential equations with positive and negative coefficients
2019
scientific article
english
- oscillation criteria
- higher order
- delay differential equations
- positive and negative coefficients
EN A new sufficient conditions for the oscillation of all solutions of higher order neutral delay differential equations with positive and negative coefficients are given. Because, we did not find a paper which gave conditions to guarantee the existence of oscillatory solutions for those equations with positive and negative coefficients. The main distinguishing feature of results is oscillation theorems for all solutions of those homogeneous or nonhomogeneous neutral equations are derived. These oscillation criteria extend and improve the results given in the recent papers.
121 - 140
CC BY-NC-ND (attribution - noncommercial - no derivatives)
public
5
5