| Autor: |
Miroslav Bartusek, Zuzana Dosla |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2014, Iss 55, Pp 1-9 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
1417-3875 |
| DOI: |
10.14232/ejqtde.2014.1.55 |
| Popis: |
We study the oscillation of a fourth order nonlinear differential equation with a middle term. Using a certain energy function, we describe the properties of oscillatory solutions. The paper extends oscillation criteria stated for equations with the operator $x^{(4)} + x''$ and completes the results stated for super-linear and sub-linear case. Oscillation results are new also for the linear equation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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