Abstract
By using the continuation theorem of coincidence degree theory, sufficient and realistic conditions are obtained for the existence of positive periodic solutions for both periodic Lotka-Volterra equations and systems with distributed or state-dependent delays. Our results substantially extend and improve existing results.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 260-280 |
| Number of pages | 21 |
| Journal | Journal of Mathematical Analysis and Applications |
| Volume | 255 |
| Issue number | 1 |
| DOIs | |
| State | Published - Mar 1 2001 |
Keywords
- Distributed delay
- Fredholm mapping
- Lotka-Volterra equation
- Positive periodic solution
- State-dependent delay
ASJC Scopus subject areas
- Analysis
- Applied Mathematics