Abstract
The existence and multiplicity of positive periodic solutions for second-order non-autonomous singular dynamical systems are established with superlinearity or sublinearity assumptions at infinity for an appropriately chosen parameter. Our results provide a unified treatment for the problem and significantly improve several results in the literature. The proof of our results is based on the Krasnoselskii fixed point theorem in a cone.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2986-3002 |
| Number of pages | 17 |
| Journal | Journal of Differential Equations |
| Volume | 249 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 15 2010 |
Keywords
- Cone
- Dynamical systems
- Krasnoselskii fixed point theorem
- Non-autonomous
- Periodic solutions
- Strong singularity
- Weak singularity
ASJC Scopus subject areas
- Analysis
- Applied Mathematics
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