On higher order fully periodic boundary value problems
In this paper we present sufficient conditions for the existence of periodic solutions of some higher order fully differential equation where the nonlinear part verifies a Nagumotype growth condition. A new type of lower and upper solutions, eventually non-ordered, allows us to obtain, not only the...
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| Format: | article |
| Language: | eng |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/10174/7575 |
| Country: | Portugal |
| Oai: | oai:dspace.uevora.pt:10174/7575 |