| Volume 8, Number 4, 2018, Pages 1282-1306 DOI：10.11948/2018.1282 |
| Recent development in oscillatory properties of certain differential equations |
| Fanwei Meng,Zhaowen Zheng |
| Keywords:Oscillation, variational principle, linear transformation, interval type, Hamiltonian system. |
| Abstract: |
| In this paper, we summarize some recent oscillation criteria for second order nonlinear differential equations and systems of differential equations, some known oscillation criteria for second order linear differential equations are also involved, and we point out the origin of theses criteria. |
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