Existence of positive periodic solutions for non-autonomous functional differential equations
oleh: Sui Sun Cheng, Guang Zhang
| Format: | Article |
|---|---|
| Diterbitkan: | Texas State University 2001-09-01 |
Deskripsi
We establish the existence of positive periodic solutions for a first-order differential equation with periodic delay. For this purpose, we use the fixed point theorem proved by Krasnoselskii.