Abstract
In this paper, we study positive periodic solutions to singular second order differential systems. It is proved that such a problem has at least two positive periodic solutions. The proof relies on a nonlinear alternative of Leray-Schauder type and on Krasnoselskii fixed point theorem on compression and expansion of cones.
| Original language | English (Ireland) |
|---|---|
| Number of pages | 10 |
| Journal | Topological Methods In Nonlinear Analysis |
| Volume | 25 |
| Publication status | Published - 1 Jun 2005 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Lin, XN;Jiang, DQ;O'Regan, D;Agarwal, RP
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