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On forced nonlinear oscillations in nth order differential systems with geometric conditions |
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| Authors: | Pierpaolo Omari Fabio Zanolin |
| Affiliation: | Istituto di Matematica Applicata, Università, Piazzale Europa 1, 34100 Trieste, Italy;Istituto di Matematica (Fac. Scienze), Università, P.le Europa 1, 34100 Trieste, Italy |
| Abstract: | |
| Keywords: | Periodic solutions higher order differential systems delay differential equations coincidence degree continuation method sign conditions. |
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