Geodesic
Existence of positive periodic solutions for non-autonomous functional differential equations
Electronic Journal of Differential Equations, Tome 2001 (2001).

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: 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.
Classification : 34B15
Keywords: positive periodic solutions, cone, delay 
@article{EJDE_2001__2001__a159,
     author = {Cheng, Sui Sun and Zhang, Guang},
     title = {Existence of positive periodic solutions for non-autonomous functional differential equations},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2001},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a159/}
}
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Cheng, Sui Sun; Zhang, Guang. Existence of positive periodic solutions for non-autonomous functional differential equations. Electronic Journal of Differential Equations, Tome 2001 (2001). http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a159/