## This paper discusses a class of first-order neutral differential equations with variable coefficients and variable deviations. A series of sufficient conditions are established for all solutions of the equations to be oscillatory, and some of the conditions are sharp.
Oscillation criteria for a first-order impulsive neutral differential equation of Euler form
โ Scribed by Kaizhong Guan; Jianhua Shen
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 523 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0898-1221
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โฆ Synopsis
In this paper, we are concerned with the oscillation of a first-order impulsive neutral differential equation of Euler form with variable delays. Our results reveal the fact that the oscillatory behavior of all solutions of differential equations without impulses can be inherited by impulsive differential equations under certain impulsive perturbations. It is also seen that the oscillatory properties of all solutions of impulsive differential equations may be caused by the impulsive perturbations, though the corresponding differential equations without impulses admit a nonoscillatory solution. Some examples are also given to illustrate the applicability of the results obtained.
๐ SIMILAR VOLUMES
For a neutral differential equation a connection between oscillation properties of the differential equation and differential inequalities is established. Explicit nonoscillation and oscillation conditions and a comparison theorem are presented.
Some sufficient conditions are obtained for oscillation of all solutions of the first-order impulsive differential equation with positive and negative coefficients Our results improve the known results in the literature.