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Positive solutions of retarded functional differential equations

✍ Scribed by Josef Diblík; Zdeněk Svoboda


Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
128 KB
Volume
63
Category
Article
ISSN
0362-546X

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✦ Synopsis


For systems of retarded functional differential equations with unbounded delay and with finite memory sufficient conditions of existence of positive solutions on an interval of the form [t 0 , ∞) are derived.


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✍ F.H. Wong; S.P. Wang; T.G. Chen 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 253 KB

We afford a existence criterion of positive solutions of a boundary value problem concerning a second order functional differential equation by using the Krasnoselskii fixed point theorem on cones in Banach spaces. Moreover, we also apply our results to establish several existence theorems of multip