Periodic solutions of generalized Liénard equations. (English) Zbl 0618.34034
On étudie les équations différentielles \(\ddot x+f(x)\dot x+g(x)=0\) et \(\ddot x+f(x,\dot x)\dot x+g(x)=0.\) On prouve, dans les conditions convenables, l’existence des solutions périodiques. On démontre quatre théorèmes. On ne donne pas d’applications des résultats du travail.
Reviewer: S.Manolov
MSC:
| 34C25 | Periodic solutions to ordinary differential equations |
Keywords:
second order differential equationReferences:
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